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Finding the Fourth Proportional to 257,177.01, 355,581.20 and 225,254.10

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Solution

The fourth proportional to 257,177.01, 355,581.20 and 225,254.10 is: 311,443.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,177.01 : 355,581.20 = 225,254.10 : x
  2. Step 2: Convert to fraction form
    257,177.01/355,581.20 = 225,254.10/x
  3. Step 3: Cross multiply
    257,177.01x = 355,581.20 × 225,254.10
  4. Step 4: Simplify right side
    257,177.01x = 80,096,122,056.65
  5. Step 5: Solve for x
    x = 80,096,122,056.65/257,177.01
  6. Step 6: Final answer
    x = 311,443.55

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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.