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Finding the Fourth Proportional to 79,254.40, 118,948.80 and 32,540.80

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Solution

The fourth proportional to 79,254.40, 118,948.80 and 32,540.80 is: 48,838.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,254.40 : 118,948.80 = 32,540.80 : x
  2. Step 2: Convert to fraction form
    79,254.40/118,948.80 = 32,540.80/x
  3. Step 3: Cross multiply
    79,254.40x = 118,948.80 × 32,540.80
  4. Step 4: Simplify right side
    79,254.40x = 3,870,689,111.04
  5. Step 5: Solve for x
    x = 3,870,689,111.04/79,254.40
  6. Step 6: Final answer
    x = 48,838.79

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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.