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Finding the Fourth Proportional to 261,997.36, 392,667.36 and 112,061.68

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Solution

The fourth proportional to 261,997.36, 392,667.36 and 112,061.68 is: 167,951.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,997.36 : 392,667.36 = 112,061.68 : x
  2. Step 2: Convert to fraction form
    261,997.36/392,667.36 = 112,061.68/x
  3. Step 3: Cross multiply
    261,997.36x = 392,667.36 × 112,061.68
  4. Step 4: Simplify right side
    261,997.36x = 44,002,964,042.76
  5. Step 5: Solve for x
    x = 44,002,964,042.76/261,997.36
  6. Step 6: Final answer
    x = 167,951.94

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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.