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Finding the Fourth Proportional to 60,847.74, 91,177.53 and 47,489.06

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Solution

The fourth proportional to 60,847.74, 91,177.53 and 47,489.06 is: 71,160.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,847.74 : 91,177.53 = 47,489.06 : x
  2. Step 2: Convert to fraction form
    60,847.74/91,177.53 = 47,489.06/x
  3. Step 3: Cross multiply
    60,847.74x = 91,177.53 × 47,489.06
  4. Step 4: Simplify right side
    60,847.74x = 4,329,935,192.82
  5. Step 5: Solve for x
    x = 4,329,935,192.82/60,847.74
  6. Step 6: Final answer
    x = 71,160.16

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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.