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Finding the Fourth Proportional to 71,236.44, 98,241.90 and 45,713.40

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Solution

The fourth proportional to 71,236.44, 98,241.90 and 45,713.40 is: 63,043.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,236.44 : 98,241.90 = 45,713.40 : x
  2. Step 2: Convert to fraction form
    71,236.44/98,241.90 = 45,713.40/x
  3. Step 3: Cross multiply
    71,236.44x = 98,241.90 × 45,713.40
  4. Step 4: Simplify right side
    71,236.44x = 4,490,971,271.46
  5. Step 5: Solve for x
    x = 4,490,971,271.46/71,236.44
  6. Step 6: Final answer
    x = 63,043.17

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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.