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Finding the Fourth Proportional to 225,988.56, 311,870.08 and 124,018.48

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Solution

The fourth proportional to 225,988.56, 311,870.08 and 124,018.48 is: 171,148.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,988.56 : 311,870.08 = 124,018.48 : x
  2. Step 2: Convert to fraction form
    225,988.56/311,870.08 = 124,018.48/x
  3. Step 3: Cross multiply
    225,988.56x = 311,870.08 × 124,018.48
  4. Step 4: Simplify right side
    225,988.56x = 38,677,653,279.08
  5. Step 5: Solve for x
    x = 38,677,653,279.08/225,988.56
  6. Step 6: Final answer
    x = 171,148.72

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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.