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Finding the Fourth Proportional to 92,498.00, 138,722.70 and 39,895.79

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Solution

The fourth proportional to 92,498.00, 138,722.70 and 39,895.79 is: 59,833.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,498.00 : 138,722.70 = 39,895.79 : x
  2. Step 2: Convert to fraction form
    92,498.00/138,722.70 = 39,895.79/x
  3. Step 3: Cross multiply
    92,498.00x = 138,722.70 × 39,895.79
  4. Step 4: Simplify right side
    92,498.00x = 5,534,451,831.54
  5. Step 5: Solve for x
    x = 5,534,451,831.54/92,498.00
  6. Step 6: Final answer
    x = 59,833.20

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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.