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Finding the Fourth Proportional to 78,888.90, 108,867.28 and 44,899.98

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Solution

The fourth proportional to 78,888.90, 108,867.28 and 44,899.98 is: 61,962.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,888.90 : 108,867.28 = 44,899.98 : x
  2. Step 2: Convert to fraction form
    78,888.90/108,867.28 = 44,899.98/x
  3. Step 3: Cross multiply
    78,888.90x = 108,867.28 × 44,899.98
  4. Step 4: Simplify right side
    78,888.90x = 4,888,138,694.65
  5. Step 5: Solve for x
    x = 4,888,138,694.65/78,888.90
  6. Step 6: Final answer
    x = 61,962.31

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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.