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Finding the Fourth Proportional to 124,508.76, 186,879.78 and 57,994.80

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Solution

The fourth proportional to 124,508.76, 186,879.78 and 57,994.80 is: 87,046.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,508.76 : 186,879.78 = 57,994.80 : x
  2. Step 2: Convert to fraction form
    124,508.76/186,879.78 = 57,994.80/x
  3. Step 3: Cross multiply
    124,508.76x = 186,879.78 × 57,994.80
  4. Step 4: Simplify right side
    124,508.76x = 10,838,055,465.14
  5. Step 5: Solve for x
    x = 10,838,055,465.14/124,508.76
  6. Step 6: Final answer
    x = 87,046.53

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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.