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Finding the Fourth Proportional to 58,937.97, 81,278.47 and 45,487.92

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Solution

The fourth proportional to 58,937.97, 81,278.47 and 45,487.92 is: 62,730.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,937.97 : 81,278.47 = 45,487.92 : x
  2. Step 2: Convert to fraction form
    58,937.97/81,278.47 = 45,487.92/x
  3. Step 3: Cross multiply
    58,937.97x = 81,278.47 × 45,487.92
  4. Step 4: Simplify right side
    58,937.97x = 3,697,188,541.08
  5. Step 5: Solve for x
    x = 3,697,188,541.08/58,937.97
  6. Step 6: Final answer
    x = 62,730.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.