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Finding the Fourth Proportional to 318,713.16, 477,958.34 and 94,013.95

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Solution

The fourth proportional to 318,713.16, 477,958.34 and 94,013.95 is: 140,988.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,713.16 : 477,958.34 = 94,013.95 : x
  2. Step 2: Convert to fraction form
    318,713.16/477,958.34 = 94,013.95/x
  3. Step 3: Cross multiply
    318,713.16x = 477,958.34 × 94,013.95
  4. Step 4: Simplify right side
    318,713.16x = 44,934,749,089.05
  5. Step 5: Solve for x
    x = 44,934,749,089.05/318,713.16
  6. Step 6: Final answer
    x = 140,988.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.