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Finding the Fourth Proportional to 62,208.80, 93,209.20 and 43,707.68

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Solution

The fourth proportional to 62,208.80, 93,209.20 and 43,707.68 is: 65,488.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,208.80 : 93,209.20 = 43,707.68 : x
  2. Step 2: Convert to fraction form
    62,208.80/93,209.20 = 43,707.68/x
  3. Step 3: Cross multiply
    62,208.80x = 93,209.20 × 43,707.68
  4. Step 4: Simplify right side
    62,208.80x = 4,073,957,886.66
  5. Step 5: Solve for x
    x = 4,073,957,886.66/62,208.80
  6. Step 6: Final answer
    x = 65,488.45

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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.