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Finding the Fourth Proportional to 83,574.33, 115,331.88 and 45,333.78

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Solution

The fourth proportional to 83,574.33, 115,331.88 and 45,333.78 is: 62,560.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,574.33 : 115,331.88 = 45,333.78 : x
  2. Step 2: Convert to fraction form
    83,574.33/115,331.88 = 45,333.78/x
  3. Step 3: Cross multiply
    83,574.33x = 115,331.88 × 45,333.78
  4. Step 4: Simplify right side
    83,574.33x = 5,228,430,074.91
  5. Step 5: Solve for x
    x = 5,228,430,074.91/83,574.33
  6. Step 6: Final answer
    x = 62,560.24

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1.5x scale

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.