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Finding the Fourth Proportional to 92,322.60, 138,385.02 and 65,947.32

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Solution

The fourth proportional to 92,322.60, 138,385.02 and 65,947.32 is: 98,850.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,322.60 : 138,385.02 = 65,947.32 : x
  2. Step 2: Convert to fraction form
    92,322.60/138,385.02 = 65,947.32/x
  3. Step 3: Cross multiply
    92,322.60x = 138,385.02 × 65,947.32
  4. Step 4: Simplify right side
    92,322.60x = 9,126,121,197.15
  5. Step 5: Solve for x
    x = 9,126,121,197.15/92,322.60
  6. Step 6: Final answer
    x = 98,850.35

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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.