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Finding the Fourth Proportional to 64,138.80, 96,323.40 and 62,065.20

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Solution

The fourth proportional to 64,138.80, 96,323.40 and 62,065.20 is: 93,209.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,138.80 : 96,323.40 = 62,065.20 : x
  2. Step 2: Convert to fraction form
    64,138.80/96,323.40 = 62,065.20/x
  3. Step 3: Cross multiply
    64,138.80x = 96,323.40 × 62,065.20
  4. Step 4: Simplify right side
    64,138.80x = 5,978,331,085.68
  5. Step 5: Solve for x
    x = 5,978,331,085.68/64,138.80
  6. Step 6: Final answer
    x = 93,209.28

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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.