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Finding the Fourth Proportional to 239,767.18, 359,718.20 and 104,843.12

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Solution

The fourth proportional to 239,767.18, 359,718.20 and 104,843.12 is: 157,294.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,767.18 : 359,718.20 = 104,843.12 : x
  2. Step 2: Convert to fraction form
    239,767.18/359,718.20 = 104,843.12/x
  3. Step 3: Cross multiply
    239,767.18x = 359,718.20 × 104,843.12
  4. Step 4: Simplify right side
    239,767.18x = 37,713,976,479.14
  5. Step 5: Solve for x
    x = 37,713,976,479.14/239,767.18
  6. Step 6: Final answer
    x = 157,294.16

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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.