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Finding the Fourth Proportional to 123,547.05, 185,265.90 and 56,952.90

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Solution

The fourth proportional to 123,547.05, 185,265.90 and 56,952.90 is: 85,404.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,547.05 : 185,265.90 = 56,952.90 : x
  2. Step 2: Convert to fraction form
    123,547.05/185,265.90 = 56,952.90/x
  3. Step 3: Cross multiply
    123,547.05x = 185,265.90 × 56,952.90
  4. Step 4: Simplify right side
    123,547.05x = 10,551,430,276.11
  5. Step 5: Solve for x
    x = 10,551,430,276.11/123,547.05
  6. Step 6: Final answer
    x = 85,404.15

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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.