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Finding the Fourth Proportional to 71,608.65, 98,738.40 and 45,732.34

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Solution

The fourth proportional to 71,608.65, 98,738.40 and 45,732.34 is: 63,058.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,608.65 : 98,738.40 = 45,732.34 : x
  2. Step 2: Convert to fraction form
    71,608.65/98,738.40 = 45,732.34/x
  3. Step 3: Cross multiply
    71,608.65x = 98,738.40 × 45,732.34
  4. Step 4: Simplify right side
    71,608.65x = 4,515,537,833.01
  5. Step 5: Solve for x
    x = 4,515,537,833.01/71,608.65
  6. Step 6: Final answer
    x = 63,058.55

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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.