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Finding the Fourth Proportional to 61,335.87, 91,886.49 and 51,404.15

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Solution

The fourth proportional to 61,335.87, 91,886.49 and 51,404.15 is: 77,007.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,335.87 : 91,886.49 = 51,404.15 : x
  2. Step 2: Convert to fraction form
    61,335.87/91,886.49 = 51,404.15/x
  3. Step 3: Cross multiply
    61,335.87x = 91,886.49 × 51,404.15
  4. Step 4: Simplify right side
    61,335.87x = 4,723,346,455.50
  5. Step 5: Solve for x
    x = 4,723,346,455.50/61,335.87
  6. Step 6: Final answer
    x = 77,007.90

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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.