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Finding the Fourth Proportional to 127,711.93, 191,567.36 and 38,965.14

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Solution

The fourth proportional to 127,711.93, 191,567.36 and 38,965.14 is: 58,447.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,711.93 : 191,567.36 = 38,965.14 : x
  2. Step 2: Convert to fraction form
    127,711.93/191,567.36 = 38,965.14/x
  3. Step 3: Cross multiply
    127,711.93x = 191,567.36 × 38,965.14
  4. Step 4: Simplify right side
    127,711.93x = 7,464,449,001.83
  5. Step 5: Solve for x
    x = 7,464,449,001.83/127,711.93
  6. Step 6: Final answer
    x = 58,447.55

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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.