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Finding the Fourth Proportional to 239,062.54, 358,479.49 and 139,251.22

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Solution

The fourth proportional to 239,062.54, 358,479.49 and 139,251.22 is: 208,810.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,062.54 : 358,479.49 = 139,251.22 : x
  2. Step 2: Convert to fraction form
    239,062.54/358,479.49 = 139,251.22/x
  3. Step 3: Cross multiply
    239,062.54x = 358,479.49 × 139,251.22
  4. Step 4: Simplify right side
    239,062.54x = 49,918,706,327.48
  5. Step 5: Solve for x
    x = 49,918,706,327.48/239,062.54
  6. Step 6: Final answer
    x = 208,810.24

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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.