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Finding the Fourth Proportional to 361,531.35, 542,294.19 and 108,810.74

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Solution

The fourth proportional to 361,531.35, 542,294.19 and 108,810.74 is: 163,215.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,531.35 : 542,294.19 = 108,810.74 : x
  2. Step 2: Convert to fraction form
    361,531.35/542,294.19 = 108,810.74/x
  3. Step 3: Cross multiply
    361,531.35x = 542,294.19 × 108,810.74
  4. Step 4: Simplify right side
    361,531.35x = 59,007,433,467.34
  5. Step 5: Solve for x
    x = 59,007,433,467.34/361,531.35
  6. Step 6: Final answer
    x = 163,215.26

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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.