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Finding the Fourth Proportional to 54,319,631.80, 81,479,447.70 and 44,745,820.60

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Solution

The fourth proportional to 54,319,631.80, 81,479,447.70 and 44,745,820.60 is: 67,118,730.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,319,631.80 : 81,479,447.70 = 44,745,820.60 : x
  2. Step 2: Convert to fraction form
    54,319,631.80/81,479,447.70 = 44,745,820.60/x
  3. Step 3: Cross multiply
    54,319,631.80x = 81,479,447.70 × 44,745,820.60
  4. Step 4: Simplify right side
    54,319,631.80x = 3,645,864,749,371,283
  5. Step 5: Solve for x
    x = 3,645,864,749,371,283/54,319,631.80
  6. Step 6: Final answer
    x = 67,118,730.90

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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.