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Finding the Fourth Proportional to 218,799.80, 328,199.70 and 184,974.20

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Solution

The fourth proportional to 218,799.80, 328,199.70 and 184,974.20 is: 277,461.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,799.80 : 328,199.70 = 184,974.20 : x
  2. Step 2: Convert to fraction form
    218,799.80/328,199.70 = 184,974.20/x
  3. Step 3: Cross multiply
    218,799.80x = 328,199.70 × 184,974.20
  4. Step 4: Simplify right side
    218,799.80x = 60,708,476,947.74
  5. Step 5: Solve for x
    x = 60,708,476,947.74/218,799.80
  6. Step 6: Final answer
    x = 277,461.30

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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.