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Finding the Fourth Proportional to 78,887.90, 108,865.90 and 44,898.98

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Solution

The fourth proportional to 78,887.90, 108,865.90 and 44,898.98 is: 61,960.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,887.90 : 108,865.90 = 44,898.98 : x
  2. Step 2: Convert to fraction form
    78,887.90/108,865.90 = 44,898.98/x
  3. Step 3: Cross multiply
    78,887.90x = 108,865.90 × 44,898.98
  4. Step 4: Simplify right side
    78,887.90x = 4,887,967,097.96
  5. Step 5: Solve for x
    x = 4,887,967,097.96/78,887.90
  6. Step 6: Final answer
    x = 61,960.92

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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.