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Finding the Fourth Proportional to 125,652.60, 173,399.40 and 71,947.08

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Solution

The fourth proportional to 125,652.60, 173,399.40 and 71,947.08 is: 99,286.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,652.60 : 173,399.40 = 71,947.08 : x
  2. Step 2: Convert to fraction form
    125,652.60/173,399.40 = 71,947.08/x
  3. Step 3: Cross multiply
    125,652.60x = 173,399.40 × 71,947.08
  4. Step 4: Simplify right side
    125,652.60x = 12,475,580,503.75
  5. Step 5: Solve for x
    x = 12,475,580,503.75/125,652.60
  6. Step 6: Final answer
    x = 99,286.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.