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Finding the Fourth Proportional to 127,956.56, 191,934.84 and 65,587.28

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Solution

The fourth proportional to 127,956.56, 191,934.84 and 65,587.28 is: 98,380.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,956.56 : 191,934.84 = 65,587.28 : x
  2. Step 2: Convert to fraction form
    127,956.56/191,934.84 = 65,587.28/x
  3. Step 3: Cross multiply
    127,956.56x = 191,934.84 × 65,587.28
  4. Step 4: Simplify right side
    127,956.56x = 12,588,484,092.84
  5. Step 5: Solve for x
    x = 12,588,484,092.84/127,956.56
  6. Step 6: Final answer
    x = 98,380.92

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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.