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Finding the Fourth Proportional to 292,562.85, 403,734.42 and 158,426.85

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Solution

The fourth proportional to 292,562.85, 403,734.42 and 158,426.85 is: 218,627.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,562.85 : 403,734.42 = 158,426.85 : x
  2. Step 2: Convert to fraction form
    292,562.85/403,734.42 = 158,426.85/x
  3. Step 3: Cross multiply
    292,562.85x = 403,734.42 × 158,426.85
  4. Step 4: Simplify right side
    292,562.85x = 63,962,372,397.18
  5. Step 5: Solve for x
    x = 63,962,372,397.18/292,562.85
  6. Step 6: Final answer
    x = 218,627.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.