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Finding the Fourth Proportional to 72,948.54, 100,752.04 and 49,033.70

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Solution

The fourth proportional to 72,948.54, 100,752.04 and 49,033.70 is: 67,722.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,948.54 : 100,752.04 = 49,033.70 : x
  2. Step 2: Convert to fraction form
    72,948.54/100,752.04 = 49,033.70/x
  3. Step 3: Cross multiply
    72,948.54x = 100,752.04 × 49,033.70
  4. Step 4: Simplify right side
    72,948.54x = 4,940,245,303.75
  5. Step 5: Solve for x
    x = 4,940,245,303.75/72,948.54
  6. Step 6: Final answer
    x = 67,722.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.