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Finding the Fourth Proportional to 144,725.80, 217,023.90 and 65,799.40

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Solution

The fourth proportional to 144,725.80, 217,023.90 and 65,799.40 is: 98,669.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,725.80 : 217,023.90 = 65,799.40 : x
  2. Step 2: Convert to fraction form
    144,725.80/217,023.90 = 65,799.40/x
  3. Step 3: Cross multiply
    144,725.80x = 217,023.90 × 65,799.40
  4. Step 4: Simplify right side
    144,725.80x = 14,280,042,405.66
  5. Step 5: Solve for x
    x = 14,280,042,405.66/144,725.80
  6. Step 6: Final answer
    x = 98,669.64

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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.