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Finding the Fourth Proportional to 545,877.10, 818,930.85 and 171,937.90

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Solution

The fourth proportional to 545,877.10, 818,930.85 and 171,937.90 is: 257,943.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,877.10 : 818,930.85 = 171,937.90 : x
  2. Step 2: Convert to fraction form
    545,877.10/818,930.85 = 171,937.90/x
  3. Step 3: Cross multiply
    545,877.10x = 818,930.85 × 171,937.90
  4. Step 4: Simplify right side
    545,877.10x = 140,805,250,594.22
  5. Step 5: Solve for x
    x = 140,805,250,594.22/545,877.10
  6. Step 6: Final answer
    x = 257,943.14

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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.