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Finding the Fourth Proportional to 115,651.68, 173,478.06 and 35,688.66

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Solution

The fourth proportional to 115,651.68, 173,478.06 and 35,688.66 is: 53,533.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,651.68 : 173,478.06 = 35,688.66 : x
  2. Step 2: Convert to fraction form
    115,651.68/173,478.06 = 35,688.66/x
  3. Step 3: Cross multiply
    115,651.68x = 173,478.06 × 35,688.66
  4. Step 4: Simplify right side
    115,651.68x = 6,191,199,500.80
  5. Step 5: Solve for x
    x = 6,191,199,500.80/115,651.68
  6. Step 6: Final answer
    x = 53,533.16

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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.