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Finding the Fourth Proportional to 70,910.62, 97,854.73 and 39,079.51

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Solution

The fourth proportional to 70,910.62, 97,854.73 and 39,079.51 is: 53,928.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,910.62 : 97,854.73 = 39,079.51 : x
  2. Step 2: Convert to fraction form
    70,910.62/97,854.73 = 39,079.51/x
  3. Step 3: Cross multiply
    70,910.62x = 97,854.73 × 39,079.51
  4. Step 4: Simplify right side
    70,910.62x = 3,824,114,899.58
  5. Step 5: Solve for x
    x = 3,824,114,899.58/70,910.62
  6. Step 6: Final answer
    x = 53,928.66

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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.