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Finding the Fourth Proportional to 318,654.69, 477,817.37 and 93,986.52

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Solution

The fourth proportional to 318,654.69, 477,817.37 and 93,986.52 is: 140,931.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,654.69 : 477,817.37 = 93,986.52 : x
  2. Step 2: Convert to fraction form
    318,654.69/477,817.37 = 93,986.52/x
  3. Step 3: Cross multiply
    318,654.69x = 477,817.37 × 93,986.52
  4. Step 4: Simplify right side
    318,654.69x = 44,908,391,331.92
  5. Step 5: Solve for x
    x = 44,908,391,331.92/318,654.69
  6. Step 6: Final answer
    x = 140,931.21

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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.