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Finding the Fourth Proportional to 144,866.80, 217,300.20 and 125,426.80

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Solution

The fourth proportional to 144,866.80, 217,300.20 and 125,426.80 is: 188,140.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,866.80 : 217,300.20 = 125,426.80 : x
  2. Step 2: Convert to fraction form
    144,866.80/217,300.20 = 125,426.80/x
  3. Step 3: Cross multiply
    144,866.80x = 217,300.20 × 125,426.80
  4. Step 4: Simplify right side
    144,866.80x = 27,255,268,725.36
  5. Step 5: Solve for x
    x = 27,255,268,725.36/144,866.80
  6. Step 6: Final answer
    x = 188,140.20

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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.