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Finding the Fourth Proportional to 71,646.58, 98,870.20 and 41,018.65

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Solution

The fourth proportional to 71,646.58, 98,870.20 and 41,018.65 is: 56,604.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,646.58 : 98,870.20 = 41,018.65 : x
  2. Step 2: Convert to fraction form
    71,646.58/98,870.20 = 41,018.65/x
  3. Step 3: Cross multiply
    71,646.58x = 98,870.20 × 41,018.65
  4. Step 4: Simplify right side
    71,646.58x = 4,055,522,129.23
  5. Step 5: Solve for x
    x = 4,055,522,129.23/71,646.58
  6. Step 6: Final answer
    x = 56,604.55

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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.