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Finding the Fourth Proportional to 402,897.59, 604,245.90 and 118,531.55

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Solution

The fourth proportional to 402,897.59, 604,245.90 and 118,531.55 is: 177,767.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,897.59 : 604,245.90 = 118,531.55 : x
  2. Step 2: Convert to fraction form
    402,897.59/604,245.90 = 118,531.55/x
  3. Step 3: Cross multiply
    402,897.59x = 604,245.90 × 118,531.55
  4. Step 4: Simplify right side
    402,897.59x = 71,622,203,108.15
  5. Step 5: Solve for x
    x = 71,622,203,108.15/402,897.59
  6. Step 6: Final answer
    x = 177,767.76

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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.