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Finding the Fourth Proportional to 66,217,840.60, 99,326,760.90 and 66,217,840.60

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Solution

The fourth proportional to 66,217,840.60, 99,326,760.90 and 66,217,840.60 is: 99,326,760.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,217,840.60 : 99,326,760.90 = 66,217,840.60 : x
  2. Step 2: Convert to fraction form
    66,217,840.60/99,326,760.90 = 66,217,840.60/x
  3. Step 3: Cross multiply
    66,217,840.60x = 99,326,760.90 × 66,217,840.60
  4. Step 4: Simplify right side
    66,217,840.60x = 6,577,203,620,590,513
  5. Step 5: Solve for x
    x = 6,577,203,620,590,513/66,217,840.60
  6. Step 6: Final answer
    x = 99,326,760.90

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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.