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Finding the Fourth Proportional to 124,092.40, 186,138.60 and 49,230.40

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Solution

The fourth proportional to 124,092.40, 186,138.60 and 49,230.40 is: 73,845.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,092.40 : 186,138.60 = 49,230.40 : x
  2. Step 2: Convert to fraction form
    124,092.40/186,138.60 = 49,230.40/x
  3. Step 3: Cross multiply
    124,092.40x = 186,138.60 × 49,230.40
  4. Step 4: Simplify right side
    124,092.40x = 9,163,677,733.44
  5. Step 5: Solve for x
    x = 9,163,677,733.44/124,092.40
  6. Step 6: Final answer
    x = 73,845.60

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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.