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Finding the Fourth Proportional to 112,846.50, 155,728.17 and 62,545.50

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Solution

The fourth proportional to 112,846.50, 155,728.17 and 62,545.50 is: 86,312.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,846.50 : 155,728.17 = 62,545.50 : x
  2. Step 2: Convert to fraction form
    112,846.50/155,728.17 = 62,545.50/x
  3. Step 3: Cross multiply
    112,846.50x = 155,728.17 × 62,545.50
  4. Step 4: Simplify right side
    112,846.50x = 9,740,096,256.74
  5. Step 5: Solve for x
    x = 9,740,096,256.74/112,846.50
  6. Step 6: Final answer
    x = 86,312.79

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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.