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Finding the Fourth Proportional to 99,576.30, 137,466.10 and 67,480.48

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Solution

The fourth proportional to 99,576.30, 137,466.10 and 67,480.48 is: 93,157.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,576.30 : 137,466.10 = 67,480.48 : x
  2. Step 2: Convert to fraction form
    99,576.30/137,466.10 = 67,480.48/x
  3. Step 3: Cross multiply
    99,576.30x = 137,466.10 × 67,480.48
  4. Step 4: Simplify right side
    99,576.30x = 9,276,278,411.73
  5. Step 5: Solve for x
    x = 9,276,278,411.73/99,576.30
  6. Step 6: Final answer
    x = 93,157.49

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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.