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Finding the Fourth Proportional to 225,775.35, 311,583.96 and 125,173.35

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Solution

The fourth proportional to 225,775.35, 311,583.96 and 125,173.35 is: 172,746.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,775.35 : 311,583.96 = 125,173.35 : x
  2. Step 2: Convert to fraction form
    225,775.35/311,583.96 = 125,173.35/x
  3. Step 3: Cross multiply
    225,775.35x = 311,583.96 × 125,173.35
  4. Step 4: Simplify right side
    225,775.35x = 39,002,008,079.47
  5. Step 5: Solve for x
    x = 39,002,008,079.47/225,775.35
  6. Step 6: Final answer
    x = 172,746.97

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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.