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Finding the Fourth Proportional to 55,124.88, 76,071.96 and 29,974.40

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Solution

The fourth proportional to 55,124.88, 76,071.96 and 29,974.40 is: 41,364.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,124.88 : 76,071.96 = 29,974.40 : x
  2. Step 2: Convert to fraction form
    55,124.88/76,071.96 = 29,974.40/x
  3. Step 3: Cross multiply
    55,124.88x = 76,071.96 × 29,974.40
  4. Step 4: Simplify right side
    55,124.88x = 2,280,211,357.82
  5. Step 5: Solve for x
    x = 2,280,211,357.82/55,124.88
  6. Step 6: Final answer
    x = 41,364.47

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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.