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Finding the Fourth Proportional to 136,016.80, 204,025.20 and 42,522.40

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Solution

The fourth proportional to 136,016.80, 204,025.20 and 42,522.40 is: 63,783.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,016.80 : 204,025.20 = 42,522.40 : x
  2. Step 2: Convert to fraction form
    136,016.80/204,025.20 = 42,522.40/x
  3. Step 3: Cross multiply
    136,016.80x = 204,025.20 × 42,522.40
  4. Step 4: Simplify right side
    136,016.80x = 8,675,641,164.48
  5. Step 5: Solve for x
    x = 8,675,641,164.48/136,016.80
  6. Step 6: Final answer
    x = 63,783.60

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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.