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Finding the Fourth Proportional to 124,168.92, 186,202.36 and 49,278.76

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Solution

The fourth proportional to 124,168.92, 186,202.36 and 49,278.76 is: 73,897.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,168.92 : 186,202.36 = 49,278.76 : x
  2. Step 2: Convert to fraction form
    124,168.92/186,202.36 = 49,278.76/x
  3. Step 3: Cross multiply
    124,168.92x = 186,202.36 × 49,278.76
  4. Step 4: Simplify right side
    124,168.92x = 9,175,821,409.87
  5. Step 5: Solve for x
    x = 9,175,821,409.87/124,168.92
  6. Step 6: Final answer
    x = 73,897.89

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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.