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Finding the Fourth Proportional to 73,894.40, 110,841.60 and 54,211.40

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Solution

The fourth proportional to 73,894.40, 110,841.60 and 54,211.40 is: 81,317.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,894.40 : 110,841.60 = 54,211.40 : x
  2. Step 2: Convert to fraction form
    73,894.40/110,841.60 = 54,211.40/x
  3. Step 3: Cross multiply
    73,894.40x = 110,841.60 × 54,211.40
  4. Step 4: Simplify right side
    73,894.40x = 6,008,878,314.24
  5. Step 5: Solve for x
    x = 6,008,878,314.24/73,894.40
  6. Step 6: Final answer
    x = 81,317.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.