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Finding the Fourth Proportional to 74,123.60, 111,203.10 and 24,203.79

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Solution

The fourth proportional to 74,123.60, 111,203.10 and 24,203.79 is: 36,311.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,123.60 : 111,203.10 = 24,203.79 : x
  2. Step 2: Convert to fraction form
    74,123.60/111,203.10 = 24,203.79/x
  3. Step 3: Cross multiply
    74,123.60x = 111,203.10 × 24,203.79
  4. Step 4: Simplify right side
    74,123.60x = 2,691,536,479.75
  5. Step 5: Solve for x
    x = 2,691,536,479.75/74,123.60
  6. Step 6: Final answer
    x = 36,311.47

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1.5x scale

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.