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Finding the Fourth Proportional to 272,856.60, 409,187.70 and 95,369.40

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Solution

The fourth proportional to 272,856.60, 409,187.70 and 95,369.40 is: 143,020.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,856.60 : 409,187.70 = 95,369.40 : x
  2. Step 2: Convert to fraction form
    272,856.60/409,187.70 = 95,369.40/x
  3. Step 3: Cross multiply
    272,856.60x = 409,187.70 × 95,369.40
  4. Step 4: Simplify right side
    272,856.60x = 39,023,985,436.38
  5. Step 5: Solve for x
    x = 39,023,985,436.38/272,856.60
  6. Step 6: Final answer
    x = 143,020.13

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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.