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Finding the Fourth Proportional to 112,219.80, 167,892.30 and 72,853.80

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Solution

The fourth proportional to 112,219.80, 167,892.30 and 72,853.80 is: 108,996.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,219.80 : 167,892.30 = 72,853.80 : x
  2. Step 2: Convert to fraction form
    112,219.80/167,892.30 = 72,853.80/x
  3. Step 3: Cross multiply
    112,219.80x = 167,892.30 × 72,853.80
  4. Step 4: Simplify right side
    112,219.80x = 12,231,592,045.74
  5. Step 5: Solve for x
    x = 12,231,592,045.74/112,219.80
  6. Step 6: Final answer
    x = 108,996.74

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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.