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Finding the Fourth Proportional to 239,561.40, 359,169.30 and 156,502.20

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Solution

The fourth proportional to 239,561.40, 359,169.30 and 156,502.20 is: 234,640.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,561.40 : 359,169.30 = 156,502.20 : x
  2. Step 2: Convert to fraction form
    239,561.40/359,169.30 = 156,502.20/x
  3. Step 3: Cross multiply
    239,561.40x = 359,169.30 × 156,502.20
  4. Step 4: Simplify right side
    239,561.40x = 56,210,785,622.46
  5. Step 5: Solve for x
    x = 56,210,785,622.46/239,561.40
  6. Step 6: Final answer
    x = 234,640.41

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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.