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Finding the Fourth Proportional to 162,061.20, 242,800.20 and 138,733.20

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Solution

The fourth proportional to 162,061.20, 242,800.20 and 138,733.20 is: 207,850.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,061.20 : 242,800.20 = 138,733.20 : x
  2. Step 2: Convert to fraction form
    162,061.20/242,800.20 = 138,733.20/x
  3. Step 3: Cross multiply
    162,061.20x = 242,800.20 × 138,733.20
  4. Step 4: Simplify right side
    162,061.20x = 33,684,448,706.64
  5. Step 5: Solve for x
    x = 33,684,448,706.64/162,061.20
  6. Step 6: Final answer
    x = 207,850.17

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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.