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Finding the Fourth Proportional to 238,233.66, 328,916.31 and 147,686.40

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Solution

The fourth proportional to 238,233.66, 328,916.31 and 147,686.40 is: 203,902.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,233.66 : 328,916.31 = 147,686.40 : x
  2. Step 2: Convert to fraction form
    238,233.66/328,916.31 = 147,686.40/x
  3. Step 3: Cross multiply
    238,233.66x = 328,916.31 × 147,686.40
  4. Step 4: Simplify right side
    238,233.66x = 48,576,465,725.18
  5. Step 5: Solve for x
    x = 48,576,465,725.18/238,233.66
  6. Step 6: Final answer
    x = 203,902.61

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1.5x scale

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.