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Finding the Fourth Proportional to 371,506.89, 557,265.48 and 105,267.15

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Solution

The fourth proportional to 371,506.89, 557,265.48 and 105,267.15 is: 157,902.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,506.89 : 557,265.48 = 105,267.15 : x
  2. Step 2: Convert to fraction form
    371,506.89/557,265.48 = 105,267.15/x
  3. Step 3: Cross multiply
    371,506.89x = 557,265.48 × 105,267.15
  4. Step 4: Simplify right side
    371,506.89x = 58,661,748,872.98
  5. Step 5: Solve for x
    x = 58,661,748,872.98/371,506.89
  6. Step 6: Final answer
    x = 157,902.18

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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.