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Finding the Fourth Proportional to 108,520.70, 162,562.35 and 61,718.90

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Solution

The fourth proportional to 108,520.70, 162,562.35 and 61,718.90 is: 92,453.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,520.70 : 162,562.35 = 61,718.90 : x
  2. Step 2: Convert to fraction form
    108,520.70/162,562.35 = 61,718.90/x
  3. Step 3: Cross multiply
    108,520.70x = 162,562.35 × 61,718.90
  4. Step 4: Simplify right side
    108,520.70x = 10,033,169,423.42
  5. Step 5: Solve for x
    x = 10,033,169,423.42/108,520.70
  6. Step 6: Final answer
    x = 92,453.97

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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.