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Finding the Fourth Proportional to 127,337.64, 191,086.64 and 71,214.48

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Solution

The fourth proportional to 127,337.64, 191,086.64 and 71,214.48 is: 106,866.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,337.64 : 191,086.64 = 71,214.48 : x
  2. Step 2: Convert to fraction form
    127,337.64/191,086.64 = 71,214.48/x
  3. Step 3: Cross multiply
    127,337.64x = 191,086.64 × 71,214.48
  4. Step 4: Simplify right side
    127,337.64x = 13,608,135,702.55
  5. Step 5: Solve for x
    x = 13,608,135,702.55/127,337.64
  6. Step 6: Final answer
    x = 106,866.56

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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.