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Finding the Fourth Proportional to 97,220.40, 145,744.20 and 63,956.40

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Solution

The fourth proportional to 97,220.40, 145,744.20 and 63,956.40 is: 95,877.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,220.40 : 145,744.20 = 63,956.40 : x
  2. Step 2: Convert to fraction form
    97,220.40/145,744.20 = 63,956.40/x
  3. Step 3: Cross multiply
    97,220.40x = 145,744.20 × 63,956.40
  4. Step 4: Simplify right side
    97,220.40x = 9,321,274,352.88
  5. Step 5: Solve for x
    x = 9,321,274,352.88/97,220.40
  6. Step 6: Final answer
    x = 95,877.76

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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.