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Finding the Fourth Proportional to 70,878.60, 97,847.46 and 48,334.68

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Solution

The fourth proportional to 70,878.60, 97,847.46 and 48,334.68 is: 66,725.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,878.60 : 97,847.46 = 48,334.68 : x
  2. Step 2: Convert to fraction form
    70,878.60/97,847.46 = 48,334.68/x
  3. Step 3: Cross multiply
    70,878.60x = 97,847.46 × 48,334.68
  4. Step 4: Simplify right side
    70,878.60x = 4,729,425,667.91
  5. Step 5: Solve for x
    x = 4,729,425,667.91/70,878.60
  6. Step 6: Final answer
    x = 66,725.72

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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.