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Finding the Fourth Proportional to 71,166.92, 106,881.60 and 56,470.28

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Solution

The fourth proportional to 71,166.92, 106,881.60 and 56,470.28 is: 84,809.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,166.92 : 106,881.60 = 56,470.28 : x
  2. Step 2: Convert to fraction form
    71,166.92/106,881.60 = 56,470.28/x
  3. Step 3: Cross multiply
    71,166.92x = 106,881.60 × 56,470.28
  4. Step 4: Simplify right side
    71,166.92x = 6,035,633,470.47
  5. Step 5: Solve for x
    x = 6,035,633,470.47/71,166.92
  6. Step 6: Final answer
    x = 84,809.54

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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.