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Finding the Fourth Proportional to 70,682.87, 97,532.92 and 43,815.58

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Solution

The fourth proportional to 70,682.87, 97,532.92 and 43,815.58 is: 60,459.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,682.87 : 97,532.92 = 43,815.58 : x
  2. Step 2: Convert to fraction form
    70,682.87/97,532.92 = 43,815.58/x
  3. Step 3: Cross multiply
    70,682.87x = 97,532.92 × 43,815.58
  4. Step 4: Simplify right side
    70,682.87x = 4,273,461,458.89
  5. Step 5: Solve for x
    x = 4,273,461,458.89/70,682.87
  6. Step 6: Final answer
    x = 60,459.65

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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.