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Finding the Fourth Proportional to 225,445.50, 311,114.88 and 124,843.50

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Solution

The fourth proportional to 225,445.50, 311,114.88 and 124,843.50 is: 172,284.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,445.50 : 311,114.88 = 124,843.50 : x
  2. Step 2: Convert to fraction form
    225,445.50/311,114.88 = 124,843.50/x
  3. Step 3: Cross multiply
    225,445.50x = 311,114.88 × 124,843.50
  4. Step 4: Simplify right side
    225,445.50x = 38,840,670,521.28
  5. Step 5: Solve for x
    x = 38,840,670,521.28/225,445.50
  6. Step 6: Final answer
    x = 172,284.08

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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.