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Finding the Fourth Proportional to 318,335.89, 477,579.69 and 93,703.65

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Solution

The fourth proportional to 318,335.89, 477,579.69 and 93,703.65 is: 140,577.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,335.89 : 477,579.69 = 93,703.65 : x
  2. Step 2: Convert to fraction form
    318,335.89/477,579.69 = 93,703.65/x
  3. Step 3: Cross multiply
    318,335.89x = 477,579.69 × 93,703.65
  4. Step 4: Simplify right side
    318,335.89x = 44,750,957,262.45
  5. Step 5: Solve for x
    x = 44,750,957,262.45/318,335.89
  6. Step 6: Final answer
    x = 140,577.80

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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.