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Finding the Fourth Proportional to 353,016, 487,162.08 and 194,040

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Solution

The fourth proportional to 353,016, 487,162.08 and 194,040 is: 267,775.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,016 : 487,162.08 = 194,040 : x
  2. Step 2: Convert to fraction form
    353,016/487,162.08 = 194,040/x
  3. Step 3: Cross multiply
    353,016x = 487,162.08 × 194,040
  4. Step 4: Simplify right side
    353,016x = 94,528,930,003.20
  5. Step 5: Solve for x
    x = 94,528,930,003.20/353,016
  6. Step 6: Final answer
    x = 267,775.20

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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.