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Finding the Fourth Proportional to 225,605.60, 311,431.78 and 152,034.18

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Solution

The fourth proportional to 225,605.60, 311,431.78 and 152,034.18 is: 209,871.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,605.60 : 311,431.78 = 152,034.18 : x
  2. Step 2: Convert to fraction form
    225,605.60/311,431.78 = 152,034.18/x
  3. Step 3: Cross multiply
    225,605.60x = 311,431.78 × 152,034.18
  4. Step 4: Simplify right side
    225,605.60x = 47,348,275,298.24
  5. Step 5: Solve for x
    x = 47,348,275,298.24/225,605.60
  6. Step 6: Final answer
    x = 209,871.90

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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.