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Finding the Fourth Proportional to 318,647.56, 477,859.96 and 93,948.36

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Solution

The fourth proportional to 318,647.56, 477,859.96 and 93,948.36 is: 140,889.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,647.56 : 477,859.96 = 93,948.36 : x
  2. Step 2: Convert to fraction form
    318,647.56/477,859.96 = 93,948.36/x
  3. Step 3: Cross multiply
    318,647.56x = 477,859.96 × 93,948.36
  4. Step 4: Simplify right side
    318,647.56x = 44,894,159,551.67
  5. Step 5: Solve for x
    x = 44,894,159,551.67/318,647.56
  6. Step 6: Final answer
    x = 140,889.70

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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.