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Finding the Fourth Proportional to 71,141.94, 98,221.68 and 45,659.34

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Solution

The fourth proportional to 71,141.94, 98,221.68 and 45,659.34 is: 63,039.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,141.94 : 98,221.68 = 45,659.34 : x
  2. Step 2: Convert to fraction form
    71,141.94/98,221.68 = 45,659.34/x
  3. Step 3: Cross multiply
    71,141.94x = 98,221.68 × 45,659.34
  4. Step 4: Simplify right side
    71,141.94x = 4,484,737,082.49
  5. Step 5: Solve for x
    x = 4,484,737,082.49/71,141.94
  6. Step 6: Final answer
    x = 63,039.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.