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Finding the Fourth Proportional to 162,490.80, 243,637.80 and 106,263.04

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Solution

The fourth proportional to 162,490.80, 243,637.80 and 106,263.04 is: 159,330.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,490.80 : 243,637.80 = 106,263.04 : x
  2. Step 2: Convert to fraction form
    162,490.80/243,637.80 = 106,263.04/x
  3. Step 3: Cross multiply
    162,490.80x = 243,637.80 × 106,263.04
  4. Step 4: Simplify right side
    162,490.80x = 25,889,693,286.91
  5. Step 5: Solve for x
    x = 25,889,693,286.91/162,490.80
  6. Step 6: Final answer
    x = 159,330.21

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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.