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Finding the Fourth Proportional to 138,006.05, 207,060.35 and 95,863.93

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Solution

The fourth proportional to 138,006.05, 207,060.35 and 95,863.93 is: 143,831.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,006.05 : 207,060.35 = 95,863.93 : x
  2. Step 2: Convert to fraction form
    138,006.05/207,060.35 = 95,863.93/x
  3. Step 3: Cross multiply
    138,006.05x = 207,060.35 × 95,863.93
  4. Step 4: Simplify right side
    138,006.05x = 19,849,617,901.21
  5. Step 5: Solve for x
    x = 19,849,617,901.21/138,006.05
  6. Step 6: Final answer
    x = 143,831.51

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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.