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Finding the Fourth Proportional to 96,316.60, 133,049.10 and 87,374.20

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Solution

The fourth proportional to 96,316.60, 133,049.10 and 87,374.20 is: 120,696.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,316.60 : 133,049.10 = 87,374.20 : x
  2. Step 2: Convert to fraction form
    96,316.60/133,049.10 = 87,374.20/x
  3. Step 3: Cross multiply
    96,316.60x = 133,049.10 × 87,374.20
  4. Step 4: Simplify right side
    96,316.60x = 11,625,058,673.22
  5. Step 5: Solve for x
    x = 11,625,058,673.22/96,316.60
  6. Step 6: Final answer
    x = 120,696.31

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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.