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Finding the Fourth Proportional to 71,026.55, 105,957.67 and 69,095.91

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Solution

The fourth proportional to 71,026.55, 105,957.67 and 69,095.91 is: 103,077.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,026.55 : 105,957.67 = 69,095.91 : x
  2. Step 2: Convert to fraction form
    71,026.55/105,957.67 = 69,095.91/x
  3. Step 3: Cross multiply
    71,026.55x = 105,957.67 × 69,095.91
  4. Step 4: Simplify right side
    71,026.55x = 7,321,241,284.65
  5. Step 5: Solve for x
    x = 7,321,241,284.65/71,026.55
  6. Step 6: Final answer
    x = 103,077.54

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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.