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Finding the Fourth Proportional to 215,648.61, 323,476.28 and 63,861.05

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Solution

The fourth proportional to 215,648.61, 323,476.28 and 63,861.05 is: 95,792.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,648.61 : 323,476.28 = 63,861.05 : x
  2. Step 2: Convert to fraction form
    215,648.61/323,476.28 = 63,861.05/x
  3. Step 3: Cross multiply
    215,648.61x = 323,476.28 × 63,861.05
  4. Step 4: Simplify right side
    215,648.61x = 20,657,532,954.21
  5. Step 5: Solve for x
    x = 20,657,532,954.21/215,648.61
  6. Step 6: Final answer
    x = 95,792.56

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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.