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Finding the Fourth Proportional to 225,420.93, 311,080.89 and 124,818.93

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Solution

The fourth proportional to 225,420.93, 311,080.89 and 124,818.93 is: 172,250.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,420.93 : 311,080.89 = 124,818.93 : x
  2. Step 2: Convert to fraction form
    225,420.93/311,080.89 = 124,818.93/x
  3. Step 3: Cross multiply
    225,420.93x = 311,080.89 × 124,818.93
  4. Step 4: Simplify right side
    225,420.93x = 38,828,783,833.25
  5. Step 5: Solve for x
    x = 38,828,783,833.25/225,420.93
  6. Step 6: Final answer
    x = 172,250.13

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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.