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Finding the Fourth Proportional to 147,998.80, 221,998.20 and 124,584.40

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Solution

The fourth proportional to 147,998.80, 221,998.20 and 124,584.40 is: 186,876.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,998.80 : 221,998.20 = 124,584.40 : x
  2. Step 2: Convert to fraction form
    147,998.80/221,998.20 = 124,584.40/x
  3. Step 3: Cross multiply
    147,998.80x = 221,998.20 × 124,584.40
  4. Step 4: Simplify right side
    147,998.80x = 27,657,512,548.08
  5. Step 5: Solve for x
    x = 27,657,512,548.08/147,998.80
  6. Step 6: Final answer
    x = 186,876.60

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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.