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Finding the Fourth Proportional to 127,597.71, 191,390.09 and 38,849.25

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Solution

The fourth proportional to 127,597.71, 191,390.09 and 38,849.25 is: 58,271.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,597.71 : 191,390.09 = 38,849.25 : x
  2. Step 2: Convert to fraction form
    127,597.71/191,390.09 = 38,849.25/x
  3. Step 3: Cross multiply
    127,597.71x = 191,390.09 × 38,849.25
  4. Step 4: Simplify right side
    127,597.71x = 7,435,361,259.69
  5. Step 5: Solve for x
    x = 7,435,361,259.69/127,597.71
  6. Step 6: Final answer
    x = 58,271.90

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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.