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Finding the Fourth Proportional to 66,449,531.70, 99,674,297.55 and 49,443,419.70

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Solution

The fourth proportional to 66,449,531.70, 99,674,297.55 and 49,443,419.70 is: 74,165,129.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,449,531.70 : 99,674,297.55 = 49,443,419.70 : x
  2. Step 2: Convert to fraction form
    66,449,531.70/99,674,297.55 = 49,443,419.70/x
  3. Step 3: Cross multiply
    66,449,531.70x = 99,674,297.55 × 49,443,419.70
  4. Step 4: Simplify right side
    66,449,531.70x = 4,928,238,127,067,332
  5. Step 5: Solve for x
    x = 4,928,238,127,067,332/66,449,531.70
  6. Step 6: Final answer
    x = 74,165,129.55

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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.