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Finding the Fourth Proportional to 225,862.60, 311,685.76 and 125,260.60

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Solution

The fourth proportional to 225,862.60, 311,685.76 and 125,260.60 is: 172,857.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,862.60 : 311,685.76 = 125,260.60 : x
  2. Step 2: Convert to fraction form
    225,862.60/311,685.76 = 125,260.60/x
  3. Step 3: Cross multiply
    225,862.60x = 311,685.76 × 125,260.60
  4. Step 4: Simplify right side
    225,862.60x = 39,041,945,309.06
  5. Step 5: Solve for x
    x = 39,041,945,309.06/225,862.60
  6. Step 6: Final answer
    x = 172,857.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.