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Finding the Fourth Proportional to 225,012.60, 310,517.70 and 123,038.52

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Solution

The fourth proportional to 225,012.60, 310,517.70 and 123,038.52 is: 169,793.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,012.60 : 310,517.70 = 123,038.52 : x
  2. Step 2: Convert to fraction form
    225,012.60/310,517.70 = 123,038.52/x
  3. Step 3: Cross multiply
    225,012.60x = 310,517.70 × 123,038.52
  4. Step 4: Simplify right side
    225,012.60x = 38,205,638,241.80
  5. Step 5: Solve for x
    x = 38,205,638,241.80/225,012.60
  6. Step 6: Final answer
    x = 169,793.33

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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.