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Finding the Fourth Proportional to 371,787.96, 557,368.44 and 161,267.40

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Solution

The fourth proportional to 371,787.96, 557,368.44 and 161,267.40 is: 241,765.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,787.96 : 557,368.44 = 161,267.40 : x
  2. Step 2: Convert to fraction form
    371,787.96/557,368.44 = 161,267.40/x
  3. Step 3: Cross multiply
    371,787.96x = 557,368.44 × 161,267.40
  4. Step 4: Simplify right side
    371,787.96x = 89,885,359,160.86
  5. Step 5: Solve for x
    x = 89,885,359,160.86/371,787.96
  6. Step 6: Final answer
    x = 241,765.12

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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.