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Finding the Fourth Proportional to 86,498.74, 119,375.13 and 48,270.79

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Solution

The fourth proportional to 86,498.74, 119,375.13 and 48,270.79 is: 66,617.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,498.74 : 119,375.13 = 48,270.79 : x
  2. Step 2: Convert to fraction form
    86,498.74/119,375.13 = 48,270.79/x
  3. Step 3: Cross multiply
    86,498.74x = 119,375.13 × 48,270.79
  4. Step 4: Simplify right side
    86,498.74x = 5,762,331,831.45
  5. Step 5: Solve for x
    x = 5,762,331,831.45/86,498.74
  6. Step 6: Final answer
    x = 66,617.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.