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Finding the Fourth Proportional to 60,469.60, 90,718.80 and 29,279.20

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Solution

The fourth proportional to 60,469.60, 90,718.80 and 29,279.20 is: 43,925.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,469.60 : 90,718.80 = 29,279.20 : x
  2. Step 2: Convert to fraction form
    60,469.60/90,718.80 = 29,279.20/x
  3. Step 3: Cross multiply
    60,469.60x = 90,718.80 × 29,279.20
  4. Step 4: Simplify right side
    60,469.60x = 2,656,173,888.96
  5. Step 5: Solve for x
    x = 2,656,173,888.96/60,469.60
  6. Step 6: Final answer
    x = 43,925.77

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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.