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Finding the Fourth Proportional to 62,230.60, 85,632.42 and 56,269

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Solution

The fourth proportional to 62,230.60, 85,632.42 and 56,269 is: 77,428.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,230.60 : 85,632.42 = 56,269 : x
  2. Step 2: Convert to fraction form
    62,230.60/85,632.42 = 56,269/x
  3. Step 3: Cross multiply
    62,230.60x = 85,632.42 × 56,269
  4. Step 4: Simplify right side
    62,230.60x = 4,818,450,640.98
  5. Step 5: Solve for x
    x = 4,818,450,640.98/62,230.60
  6. Step 6: Final answer
    x = 77,428.96

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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.