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Finding the Fourth Proportional to 371,414.34, 557,342.88 and 134,775.48

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Solution

The fourth proportional to 371,414.34, 557,342.88 and 134,775.48 is: 202,243.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,414.34 : 557,342.88 = 134,775.48 : x
  2. Step 2: Convert to fraction form
    371,414.34/557,342.88 = 134,775.48/x
  3. Step 3: Cross multiply
    371,414.34x = 557,342.88 × 134,775.48
  4. Step 4: Simplify right side
    371,414.34x = 75,116,154,176.58
  5. Step 5: Solve for x
    x = 75,116,154,176.58/371,414.34
  6. Step 6: Final answer
    x = 202,243.55

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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.