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Finding the Fourth Proportional to 109,061.80, 163,592.70 and 82,817.80

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Solution

The fourth proportional to 109,061.80, 163,592.70 and 82,817.80 is: 124,226.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,061.80 : 163,592.70 = 82,817.80 : x
  2. Step 2: Convert to fraction form
    109,061.80/163,592.70 = 82,817.80/x
  3. Step 3: Cross multiply
    109,061.80x = 163,592.70 × 82,817.80
  4. Step 4: Simplify right side
    109,061.80x = 13,548,387,510.06
  5. Step 5: Solve for x
    x = 13,548,387,510.06/109,061.80
  6. Step 6: Final answer
    x = 124,226.70

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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.