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Finding the Fourth Proportional to 68,355.96, 94,319.90 and 45,658.54

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Solution

The fourth proportional to 68,355.96, 94,319.90 and 45,658.54 is: 63,001.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,355.96 : 94,319.90 = 45,658.54 : x
  2. Step 2: Convert to fraction form
    68,355.96/94,319.90 = 45,658.54/x
  3. Step 3: Cross multiply
    68,355.96x = 94,319.90 × 45,658.54
  4. Step 4: Simplify right side
    68,355.96x = 4,306,508,926.95
  5. Step 5: Solve for x
    x = 4,306,508,926.95/68,355.96
  6. Step 6: Final answer
    x = 63,001.22

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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.