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Finding the Fourth Proportional to 71,022.95, 97,923.05 and 45,487.36

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Solution

The fourth proportional to 71,022.95, 97,923.05 and 45,487.36 is: 62,715.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,022.95 : 97,923.05 = 45,487.36 : x
  2. Step 2: Convert to fraction form
    71,022.95/97,923.05 = 45,487.36/x
  3. Step 3: Cross multiply
    71,022.95x = 97,923.05 × 45,487.36
  4. Step 4: Simplify right side
    71,022.95x = 4,454,260,310.60
  5. Step 5: Solve for x
    x = 4,454,260,310.60/71,022.95
  6. Step 6: Final answer
    x = 62,715.79

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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.