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Finding the Fourth Proportional to 82,744.40, 124,116.60 and 49,566.80

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Solution

The fourth proportional to 82,744.40, 124,116.60 and 49,566.80 is: 74,350.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,744.40 : 124,116.60 = 49,566.80 : x
  2. Step 2: Convert to fraction form
    82,744.40/124,116.60 = 49,566.80/x
  3. Step 3: Cross multiply
    82,744.40x = 124,116.60 × 49,566.80
  4. Step 4: Simplify right side
    82,744.40x = 6,152,062,688.88
  5. Step 5: Solve for x
    x = 6,152,062,688.88/82,744.40
  6. Step 6: Final answer
    x = 74,350.20

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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.