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Finding the Fourth Proportional to 61,180.61, 91,759.95 and 38,927.88

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Solution

The fourth proportional to 61,180.61, 91,759.95 and 38,927.88 is: 58,384.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,180.61 : 91,759.95 = 38,927.88 : x
  2. Step 2: Convert to fraction form
    61,180.61/91,759.95 = 38,927.88/x
  3. Step 3: Cross multiply
    61,180.61x = 91,759.95 × 38,927.88
  4. Step 4: Simplify right side
    61,180.61x = 3,572,020,322.41
  5. Step 5: Solve for x
    x = 3,572,020,322.41/61,180.61
  6. Step 6: Final answer
    x = 58,384.85

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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.