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Finding the Fourth Proportional to 124,166.70, 186,253.47 and 45,339.66

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Solution

The fourth proportional to 124,166.70, 186,253.47 and 45,339.66 is: 68,010.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,166.70 : 186,253.47 = 45,339.66 : x
  2. Step 2: Convert to fraction form
    124,166.70/186,253.47 = 45,339.66/x
  3. Step 3: Cross multiply
    124,166.70x = 186,253.47 × 45,339.66
  4. Step 4: Simplify right side
    124,166.70x = 8,444,669,003.62
  5. Step 5: Solve for x
    x = 8,444,669,003.62/124,166.70
  6. Step 6: Final answer
    x = 68,010.74

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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.