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Finding the Fourth Proportional to 78,886.90, 108,864.52 and 44,897.97

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Solution

The fourth proportional to 78,886.90, 108,864.52 and 44,897.97 is: 61,959.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,886.90 : 108,864.52 = 44,897.97 : x
  2. Step 2: Convert to fraction form
    78,886.90/108,864.52 = 44,897.97/x
  3. Step 3: Cross multiply
    78,886.90x = 108,864.52 × 44,897.97
  4. Step 4: Simplify right side
    78,886.90x = 4,887,795,953.02
  5. Step 5: Solve for x
    x = 4,887,795,953.02/78,886.90
  6. Step 6: Final answer
    x = 61,959.54

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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.