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Finding the Fourth Proportional to 112,510.80, 168,766.20 and 108,574.20

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Solution

The fourth proportional to 112,510.80, 168,766.20 and 108,574.20 is: 162,861.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,510.80 : 168,766.20 = 108,574.20 : x
  2. Step 2: Convert to fraction form
    112,510.80/168,766.20 = 108,574.20/x
  3. Step 3: Cross multiply
    112,510.80x = 168,766.20 × 108,574.20
  4. Step 4: Simplify right side
    112,510.80x = 18,323,655,152.04
  5. Step 5: Solve for x
    x = 18,323,655,152.04/112,510.80
  6. Step 6: Final answer
    x = 162,861.30

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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.