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Finding the Fourth Proportional to 67,953,464.80, 101,925,531.60 and 21,894,661.60

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Solution

The fourth proportional to 67,953,464.80, 101,925,531.60 and 21,894,661.60 is: 32,840,489.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,953,464.80 : 101,925,531.60 = 21,894,661.60 : x
  2. Step 2: Convert to fraction form
    67,953,464.80/101,925,531.60 = 21,894,661.60/x
  3. Step 3: Cross multiply
    67,953,464.80x = 101,925,531.60 × 21,894,661.60
  4. Step 4: Simplify right side
    67,953,464.80x = 2,231,625,022,782,106.50
  5. Step 5: Solve for x
    x = 2,231,625,022,782,106.50/67,953,464.80
  6. Step 6: Final answer
    x = 32,840,489.14

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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.