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Finding the Fourth Proportional to 238,957.27, 358,435.87 and 98,719.54

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Solution

The fourth proportional to 238,957.27, 358,435.87 and 98,719.54 is: 148,079.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,957.27 : 358,435.87 = 98,719.54 : x
  2. Step 2: Convert to fraction form
    238,957.27/358,435.87 = 98,719.54/x
  3. Step 3: Cross multiply
    238,957.27x = 358,435.87 × 98,719.54
  4. Step 4: Simplify right side
    238,957.27x = 35,384,623,063.01
  5. Step 5: Solve for x
    x = 35,384,623,063.01/238,957.27
  6. Step 6: Final answer
    x = 148,079.29

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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.