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Finding the Fourth Proportional to 352,017.60, 527,248.80 and 185,611.20

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Solution

The fourth proportional to 352,017.60, 527,248.80 and 185,611.20 is: 278,006.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,017.60 : 527,248.80 = 185,611.20 : x
  2. Step 2: Convert to fraction form
    352,017.60/527,248.80 = 185,611.20/x
  3. Step 3: Cross multiply
    352,017.60x = 527,248.80 × 185,611.20
  4. Step 4: Simplify right side
    352,017.60x = 97,863,282,466.56
  5. Step 5: Solve for x
    x = 97,863,282,466.56/352,017.60
  6. Step 6: Final answer
    x = 278,006.79

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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.