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Finding the Fourth Proportional to 108,616.70, 162,925.05 and 71,194.70

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Solution

The fourth proportional to 108,616.70, 162,925.05 and 71,194.70 is: 106,792.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,616.70 : 162,925.05 = 71,194.70 : x
  2. Step 2: Convert to fraction form
    108,616.70/162,925.05 = 71,194.70/x
  3. Step 3: Cross multiply
    108,616.70x = 162,925.05 × 71,194.70
  4. Step 4: Simplify right side
    108,616.70x = 11,599,400,057.24
  5. Step 5: Solve for x
    x = 11,599,400,057.24/108,616.70
  6. Step 6: Final answer
    x = 106,792.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.