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Finding the Fourth Proportional to 64,355.80, 96,648.90 and 62,282.20

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Solution

The fourth proportional to 64,355.80, 96,648.90 and 62,282.20 is: 93,534.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,355.80 : 96,648.90 = 62,282.20 : x
  2. Step 2: Convert to fraction form
    64,355.80/96,648.90 = 62,282.20/x
  3. Step 3: Cross multiply
    64,355.80x = 96,648.90 × 62,282.20
  4. Step 4: Simplify right side
    64,355.80x = 6,019,506,119.58
  5. Step 5: Solve for x
    x = 6,019,506,119.58/64,355.80
  6. Step 6: Final answer
    x = 93,534.79

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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.