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Finding the Fourth Proportional to 71,054.27, 105,963.82 and 70,100.89

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Solution

The fourth proportional to 71,054.27, 105,963.82 and 70,100.89 is: 104,542.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,054.27 : 105,963.82 = 70,100.89 : x
  2. Step 2: Convert to fraction form
    71,054.27/105,963.82 = 70,100.89/x
  3. Step 3: Cross multiply
    71,054.27x = 105,963.82 × 70,100.89
  4. Step 4: Simplify right side
    71,054.27x = 7,428,158,089.80
  5. Step 5: Solve for x
    x = 7,428,158,089.80/71,054.27
  6. Step 6: Final answer
    x = 104,542.04

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.