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Finding the Fourth Proportional to 153,988.48, 231,006.96 and 65,242.24

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Solution

The fourth proportional to 153,988.48, 231,006.96 and 65,242.24 is: 97,873.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,988.48 : 231,006.96 = 65,242.24 : x
  2. Step 2: Convert to fraction form
    153,988.48/231,006.96 = 65,242.24/x
  3. Step 3: Cross multiply
    153,988.48x = 231,006.96 × 65,242.24
  4. Step 4: Simplify right side
    153,988.48x = 15,071,411,525.99
  5. Step 5: Solve for x
    x = 15,071,411,525.99/153,988.48
  6. Step 6: Final answer
    x = 97,873.63

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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.