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Finding the Fourth Proportional to 402,376.73, 603,658.52 and 118,055.80

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Solution

The fourth proportional to 402,376.73, 603,658.52 and 118,055.80 is: 177,111.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,376.73 : 603,658.52 = 118,055.80 : x
  2. Step 2: Convert to fraction form
    402,376.73/603,658.52 = 118,055.80/x
  3. Step 3: Cross multiply
    402,376.73x = 603,658.52 × 118,055.80
  4. Step 4: Simplify right side
    402,376.73x = 71,265,389,505.42
  5. Step 5: Solve for x
    x = 71,265,389,505.42/402,376.73
  6. Step 6: Final answer
    x = 177,111.11

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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.