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Finding the Fourth Proportional to 225,394.75, 311,054.48 and 124,792.75

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Solution

The fourth proportional to 225,394.75, 311,054.48 and 124,792.75 is: 172,219.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,394.75 : 311,054.48 = 124,792.75 : x
  2. Step 2: Convert to fraction form
    225,394.75/311,054.48 = 124,792.75/x
  3. Step 3: Cross multiply
    225,394.75x = 311,054.48 × 124,792.75
  4. Step 4: Simplify right side
    225,394.75x = 38,817,343,959.02
  5. Step 5: Solve for x
    x = 38,817,343,959.02/225,394.75
  6. Step 6: Final answer
    x = 172,219.38

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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.