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Finding the Fourth Proportional to 67,429.60, 101,259.60 and 44,159.20

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Solution

The fourth proportional to 67,429.60, 101,259.60 and 44,159.20 is: 66,314.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,429.60 : 101,259.60 = 44,159.20 : x
  2. Step 2: Convert to fraction form
    67,429.60/101,259.60 = 44,159.20/x
  3. Step 3: Cross multiply
    67,429.60x = 101,259.60 × 44,159.20
  4. Step 4: Simplify right side
    67,429.60x = 4,471,542,928.32
  5. Step 5: Solve for x
    x = 4,471,542,928.32/67,429.60
  6. Step 6: Final answer
    x = 66,314.24

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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.