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Finding the Fourth Proportional to 239,675.40, 359,340.30 and 156,616.20

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Solution

The fourth proportional to 239,675.40, 359,340.30 and 156,616.20 is: 234,811.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,675.40 : 359,340.30 = 156,616.20 : x
  2. Step 2: Convert to fraction form
    239,675.40/359,340.30 = 156,616.20/x
  3. Step 3: Cross multiply
    239,675.40x = 359,340.30 × 156,616.20
  4. Step 4: Simplify right side
    239,675.40x = 56,278,512,292.86
  5. Step 5: Solve for x
    x = 56,278,512,292.86/239,675.40
  6. Step 6: Final answer
    x = 234,811.38

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1.5x scale

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.