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Finding the Fourth Proportional to 356,004.80, 533,877.60 and 119,355.20

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Solution

The fourth proportional to 356,004.80, 533,877.60 and 119,355.20 is: 178,989.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,004.80 : 533,877.60 = 119,355.20 : x
  2. Step 2: Convert to fraction form
    356,004.80/533,877.60 = 119,355.20/x
  3. Step 3: Cross multiply
    356,004.80x = 533,877.60 × 119,355.20
  4. Step 4: Simplify right side
    356,004.80x = 63,721,067,723.52
  5. Step 5: Solve for x
    x = 63,721,067,723.52/356,004.80
  6. Step 6: Final answer
    x = 178,989.35

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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.