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Finding the Fourth Proportional to 220,837.88, 304,765.44 and 125,353.46

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Solution

The fourth proportional to 220,837.88, 304,765.44 and 125,353.46 is: 172,992.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,837.88 : 304,765.44 = 125,353.46 : x
  2. Step 2: Convert to fraction form
    220,837.88/304,765.44 = 125,353.46/x
  3. Step 3: Cross multiply
    220,837.88x = 304,765.44 × 125,353.46
  4. Step 4: Simplify right side
    220,837.88x = 38,203,402,684.26
  5. Step 5: Solve for x
    x = 38,203,402,684.26/220,837.88
  6. Step 6: Final answer
    x = 172,992.98

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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.