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Finding the Fourth Proportional to 243,011.80, 364,517.70 and 180,803.80

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Solution

The fourth proportional to 243,011.80, 364,517.70 and 180,803.80 is: 271,205.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,011.80 : 364,517.70 = 180,803.80 : x
  2. Step 2: Convert to fraction form
    243,011.80/364,517.70 = 180,803.80/x
  3. Step 3: Cross multiply
    243,011.80x = 364,517.70 × 180,803.80
  4. Step 4: Simplify right side
    243,011.80x = 65,906,185,327.26
  5. Step 5: Solve for x
    x = 65,906,185,327.26/243,011.80
  6. Step 6: Final answer
    x = 271,205.70

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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.