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Finding the Fourth Proportional to 162,821.80, 244,232.70 and 155,909.80

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Solution

The fourth proportional to 162,821.80, 244,232.70 and 155,909.80 is: 233,864.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,821.80 : 244,232.70 = 155,909.80 : x
  2. Step 2: Convert to fraction form
    162,821.80/244,232.70 = 155,909.80/x
  3. Step 3: Cross multiply
    162,821.80x = 244,232.70 × 155,909.80
  4. Step 4: Simplify right side
    162,821.80x = 38,078,271,410.46
  5. Step 5: Solve for x
    x = 38,078,271,410.46/162,821.80
  6. Step 6: Final answer
    x = 233,864.70

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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.