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Finding the Fourth Proportional to 70,913.68, 97,885.94 and 63,346.86

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Solution

The fourth proportional to 70,913.68, 97,885.94 and 63,346.86 is: 87,441.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,913.68 : 97,885.94 = 63,346.86 : x
  2. Step 2: Convert to fraction form
    70,913.68/97,885.94 = 63,346.86/x
  3. Step 3: Cross multiply
    70,913.68x = 97,885.94 × 63,346.86
  4. Step 4: Simplify right side
    70,913.68x = 6,200,766,937.15
  5. Step 5: Solve for x
    x = 6,200,766,937.15/70,913.68
  6. Step 6: Final answer
    x = 87,441.05

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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.