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Finding the Fourth Proportional to 283,211.20, 424,715.61 and 93,636.57

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Solution

The fourth proportional to 283,211.20, 424,715.61 and 93,636.57 is: 140,421.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,211.20 : 424,715.61 = 93,636.57 : x
  2. Step 2: Convert to fraction form
    283,211.20/424,715.61 = 93,636.57/x
  3. Step 3: Cross multiply
    283,211.20x = 424,715.61 × 93,636.57
  4. Step 4: Simplify right side
    283,211.20x = 39,768,912,945.86
  5. Step 5: Solve for x
    x = 39,768,912,945.86/283,211.20
  6. Step 6: Final answer
    x = 140,421.40

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1.5x scale

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.