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Finding the Fourth Proportional to 86,735.73, 130,007.95 and 56,737.52

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Solution

The fourth proportional to 86,735.73, 130,007.95 and 56,737.52 is: 85,043.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,735.73 : 130,007.95 = 56,737.52 : x
  2. Step 2: Convert to fraction form
    86,735.73/130,007.95 = 56,737.52/x
  3. Step 3: Cross multiply
    86,735.73x = 130,007.95 × 56,737.52
  4. Step 4: Simplify right side
    86,735.73x = 7,376,328,663.28
  5. Step 5: Solve for x
    x = 7,376,328,663.28/86,735.73
  6. Step 6: Final answer
    x = 85,043.71

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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.