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Finding the Fourth Proportional to 88,493.40, 122,276.52 and 70,734.96

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Solution

The fourth proportional to 88,493.40, 122,276.52 and 70,734.96 is: 97,738.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,493.40 : 122,276.52 = 70,734.96 : x
  2. Step 2: Convert to fraction form
    88,493.40/122,276.52 = 70,734.96/x
  3. Step 3: Cross multiply
    88,493.40x = 122,276.52 × 70,734.96
  4. Step 4: Simplify right side
    88,493.40x = 8,649,224,751.14
  5. Step 5: Solve for x
    x = 8,649,224,751.14/88,493.40
  6. Step 6: Final answer
    x = 97,738.64

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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.