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Finding the Fourth Proportional to 73,515.60, 110,151.80 and 42,296.40

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Solution

The fourth proportional to 73,515.60, 110,151.80 and 42,296.40 is: 63,374.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,515.60 : 110,151.80 = 42,296.40 : x
  2. Step 2: Convert to fraction form
    73,515.60/110,151.80 = 42,296.40/x
  3. Step 3: Cross multiply
    73,515.60x = 110,151.80 × 42,296.40
  4. Step 4: Simplify right side
    73,515.60x = 4,659,024,593.52
  5. Step 5: Solve for x
    x = 4,659,024,593.52/73,515.60
  6. Step 6: Final answer
    x = 63,374.64

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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.