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Finding the Fourth Proportional to 96,988.77, 145,483.17 and 30,434.22

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Solution

The fourth proportional to 96,988.77, 145,483.17 and 30,434.22 is: 45,651.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,988.77 : 145,483.17 = 30,434.22 : x
  2. Step 2: Convert to fraction form
    96,988.77/145,483.17 = 30,434.22/x
  3. Step 3: Cross multiply
    96,988.77x = 145,483.17 × 30,434.22
  4. Step 4: Simplify right side
    96,988.77x = 4,427,666,802.08
  5. Step 5: Solve for x
    x = 4,427,666,802.08/96,988.77
  6. Step 6: Final answer
    x = 45,651.33

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Double scale
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Similar ratio
Find fourth proportional to 145,483.16, 218,224.76 and 45,651.33
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.