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Finding the Fourth Proportional to 78,211.88, 107,926.02 and 44,223.32

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Solution

The fourth proportional to 78,211.88, 107,926.02 and 44,223.32 is: 61,024.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,211.88 : 107,926.02 = 44,223.32 : x
  2. Step 2: Convert to fraction form
    78,211.88/107,926.02 = 44,223.32/x
  3. Step 3: Cross multiply
    78,211.88x = 107,926.02 × 44,223.32
  4. Step 4: Simplify right side
    78,211.88x = 4,772,846,918.79
  5. Step 5: Solve for x
    x = 4,772,846,918.79/78,211.88
  6. Step 6: Final answer
    x = 61,024.58

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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.