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Finding the Fourth Proportional to 70,765.76, 97,657.58 and 40,550.48

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Solution

The fourth proportional to 70,765.76, 97,657.58 and 40,550.48 is: 55,960.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,765.76 : 97,657.58 = 40,550.48 : x
  2. Step 2: Convert to fraction form
    70,765.76/97,657.58 = 40,550.48/x
  3. Step 3: Cross multiply
    70,765.76x = 97,657.58 × 40,550.48
  4. Step 4: Simplify right side
    70,765.76x = 3,960,061,744.64
  5. Step 5: Solve for x
    x = 3,960,061,744.64/70,765.76
  6. Step 6: Final answer
    x = 55,960.14

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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.