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Finding the Fourth Proportional to 162,424.85, 243,678.80 and 67,623.53

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Solution

The fourth proportional to 162,424.85, 243,678.80 and 67,623.53 is: 101,452.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,424.85 : 243,678.80 = 67,623.53 : x
  2. Step 2: Convert to fraction form
    162,424.85/243,678.80 = 67,623.53/x
  3. Step 3: Cross multiply
    162,424.85x = 243,678.80 × 67,623.53
  4. Step 4: Simplify right side
    162,424.85x = 16,478,419,085.65
  5. Step 5: Solve for x
    x = 16,478,419,085.65/162,424.85
  6. Step 6: Final answer
    x = 101,452.58

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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.