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Finding the Fourth Proportional to 70,111, 96,753 and 38,279.89

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Solution

The fourth proportional to 70,111, 96,753 and 38,279.89 is: 52,826.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,111 : 96,753 = 38,279.89 : x
  2. Step 2: Convert to fraction form
    70,111/96,753 = 38,279.89/x
  3. Step 3: Cross multiply
    70,111x = 96,753 × 38,279.89
  4. Step 4: Simplify right side
    70,111x = 3,703,694,197.17
  5. Step 5: Solve for x
    x = 3,703,694,197.17/70,111
  6. Step 6: Final answer
    x = 52,826.15

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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.