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Finding the Fourth Proportional to 127,965.50, 191,691.26 and 63,730.12

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Solution

The fourth proportional to 127,965.50, 191,691.26 and 63,730.12 is: 95,467.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,965.50 : 191,691.26 = 63,730.12 : x
  2. Step 2: Convert to fraction form
    127,965.50/191,691.26 = 63,730.12/x
  3. Step 3: Cross multiply
    127,965.50x = 191,691.26 × 63,730.12
  4. Step 4: Simplify right side
    127,965.50x = 12,216,507,002.75
  5. Step 5: Solve for x
    x = 12,216,507,002.75/127,965.50
  6. Step 6: Final answer
    x = 95,467.19

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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.