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Finding the Fourth Proportional to 245,528.80, 368,293.20 and 156,517.90

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Solution

The fourth proportional to 245,528.80, 368,293.20 and 156,517.90 is: 234,776.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,528.80 : 368,293.20 = 156,517.90 : x
  2. Step 2: Convert to fraction form
    245,528.80/368,293.20 = 156,517.90/x
  3. Step 3: Cross multiply
    245,528.80x = 368,293.20 × 156,517.90
  4. Step 4: Simplify right side
    245,528.80x = 57,644,478,248.28
  5. Step 5: Solve for x
    x = 57,644,478,248.28/245,528.80
  6. Step 6: Final answer
    x = 234,776.85

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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.