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Finding the Fourth Proportional to 159,482.70, 239,224.05 and 70,909.20

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Solution

The fourth proportional to 159,482.70, 239,224.05 and 70,909.20 is: 106,363.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,482.70 : 239,224.05 = 70,909.20 : x
  2. Step 2: Convert to fraction form
    159,482.70/239,224.05 = 70,909.20/x
  3. Step 3: Cross multiply
    159,482.70x = 239,224.05 × 70,909.20
  4. Step 4: Simplify right side
    159,482.70x = 16,963,186,006.26
  5. Step 5: Solve for x
    x = 16,963,186,006.26/159,482.70
  6. Step 6: Final answer
    x = 106,363.80

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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.