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Finding the Fourth Proportional to 74,302.80, 111,470.40 and 24,374.40

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Solution

The fourth proportional to 74,302.80, 111,470.40 and 24,374.40 is: 36,566.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,302.80 : 111,470.40 = 24,374.40 : x
  2. Step 2: Convert to fraction form
    74,302.80/111,470.40 = 24,374.40/x
  3. Step 3: Cross multiply
    74,302.80x = 111,470.40 × 24,374.40
  4. Step 4: Simplify right side
    74,302.80x = 2,717,024,117.76
  5. Step 5: Solve for x
    x = 2,717,024,117.76/74,302.80
  6. Step 6: Final answer
    x = 36,566.91

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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.