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Finding the Fourth Proportional to 127,617.92, 191,434.64 and 38,877.92

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Solution

The fourth proportional to 127,617.92, 191,434.64 and 38,877.92 is: 58,319.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,617.92 : 191,434.64 = 38,877.92 : x
  2. Step 2: Convert to fraction form
    127,617.92/191,434.64 = 38,877.92/x
  3. Step 3: Cross multiply
    127,617.92x = 191,434.64 × 38,877.92
  4. Step 4: Simplify right side
    127,617.92x = 7,442,580,619.15
  5. Step 5: Solve for x
    x = 7,442,580,619.15/127,617.92
  6. Step 6: Final answer
    x = 58,319.24

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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.