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Finding the Fourth Proportional to 402,374.24, 603,654.78 and 118,053.30

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Solution

The fourth proportional to 402,374.24, 603,654.78 and 118,053.30 is: 177,107.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,374.24 : 603,654.78 = 118,053.30 : x
  2. Step 2: Convert to fraction form
    402,374.24/603,654.78 = 118,053.30/x
  3. Step 3: Cross multiply
    402,374.24x = 603,654.78 × 118,053.30
  4. Step 4: Simplify right side
    402,374.24x = 71,263,438,839.77
  5. Step 5: Solve for x
    x = 71,263,438,839.77/402,374.24
  6. Step 6: Final answer
    x = 177,107.36

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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.