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Finding the Fourth Proportional to 66,163,464.80, 99,351,485.40 and 50,007,658.40

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Solution

The fourth proportional to 66,163,464.80, 99,351,485.40 and 50,007,658.40 is: 75,091,822.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,163,464.80 : 99,351,485.40 = 50,007,658.40 : x
  2. Step 2: Convert to fraction form
    66,163,464.80/99,351,485.40 = 50,007,658.40/x
  3. Step 3: Cross multiply
    66,163,464.80x = 99,351,485.40 × 50,007,658.40
  4. Step 4: Simplify right side
    66,163,464.80x = 4,968,335,143,415,788
  5. Step 5: Solve for x
    x = 4,968,335,143,415,788/66,163,464.80
  6. Step 6: Final answer
    x = 75,091,822.33

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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.