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Finding the Fourth Proportional to 318,770.83, 478,100.76 and 119,092.87

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Solution

The fourth proportional to 318,770.83, 478,100.76 and 119,092.87 is: 178,618.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,770.83 : 478,100.76 = 119,092.87 : x
  2. Step 2: Convert to fraction form
    318,770.83/478,100.76 = 119,092.87/x
  3. Step 3: Cross multiply
    318,770.83x = 478,100.76 × 119,092.87
  4. Step 4: Simplify right side
    318,770.83x = 56,938,391,657.58
  5. Step 5: Solve for x
    x = 56,938,391,657.58/318,770.83
  6. Step 6: Final answer
    x = 178,618.58

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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.