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Finding the Fourth Proportional to 70,044.59, 96,661.07 and 39,829.91

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Solution

The fourth proportional to 70,044.59, 96,661.07 and 39,829.91 is: 54,965.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,044.59 : 96,661.07 = 39,829.91 : x
  2. Step 2: Convert to fraction form
    70,044.59/96,661.07 = 39,829.91/x
  3. Step 3: Cross multiply
    70,044.59x = 96,661.07 × 39,829.91
  4. Step 4: Simplify right side
    70,044.59x = 3,850,001,036.15
  5. Step 5: Solve for x
    x = 3,850,001,036.15/70,044.59
  6. Step 6: Final answer
    x = 54,965.01

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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.