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Finding the Fourth Proportional to 74,123.60, 111,199.80 and 32,003.60

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Solution

The fourth proportional to 74,123.60, 111,199.80 and 32,003.60 is: 48,011.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,123.60 : 111,199.80 = 32,003.60 : x
  2. Step 2: Convert to fraction form
    74,123.60/111,199.80 = 32,003.60/x
  3. Step 3: Cross multiply
    74,123.60x = 111,199.80 × 32,003.60
  4. Step 4: Simplify right side
    74,123.60x = 3,558,793,919.28
  5. Step 5: Solve for x
    x = 3,558,793,919.28/74,123.60
  6. Step 6: Final answer
    x = 48,011.62

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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.