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Finding the Fourth Proportional to 92,477.76, 127,585.17 and 60,689.85

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Solution

The fourth proportional to 92,477.76, 127,585.17 and 60,689.85 is: 83,729.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,477.76 : 127,585.17 = 60,689.85 : x
  2. Step 2: Convert to fraction form
    92,477.76/127,585.17 = 60,689.85/x
  3. Step 3: Cross multiply
    92,477.76x = 127,585.17 × 60,689.85
  4. Step 4: Simplify right side
    92,477.76x = 7,743,124,829.52
  5. Step 5: Solve for x
    x = 7,743,124,829.52/92,477.76
  6. Step 6: Final answer
    x = 83,729.59

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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.