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Finding the Fourth Proportional to 124,625.40, 186,962.40 and 49,732.80

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Solution

The fourth proportional to 124,625.40, 186,962.40 and 49,732.80 is: 74,608.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,625.40 : 186,962.40 = 49,732.80 : x
  2. Step 2: Convert to fraction form
    124,625.40/186,962.40 = 49,732.80/x
  3. Step 3: Cross multiply
    124,625.40x = 186,962.40 × 49,732.80
  4. Step 4: Simplify right side
    124,625.40x = 9,298,163,646.72
  5. Step 5: Solve for x
    x = 9,298,163,646.72/124,625.40
  6. Step 6: Final answer
    x = 74,608.90

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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.