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Finding the Fourth Proportional to 70,162.62, 96,828.88 and 39,950.58

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Solution

The fourth proportional to 70,162.62, 96,828.88 and 39,950.58 is: 55,134.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,162.62 : 96,828.88 = 39,950.58 : x
  2. Step 2: Convert to fraction form
    70,162.62/96,828.88 = 39,950.58/x
  3. Step 3: Cross multiply
    70,162.62x = 96,828.88 × 39,950.58
  4. Step 4: Simplify right side
    70,162.62x = 3,868,369,916.75
  5. Step 5: Solve for x
    x = 3,868,369,916.75/70,162.62
  6. Step 6: Final answer
    x = 55,134.34

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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.