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Finding the Fourth Proportional to 235,640,963.16, 353,517,082.02 and 74,082,899.16

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Solution

The fourth proportional to 235,640,963.16, 353,517,082.02 and 74,082,899.16 is: 111,141,840.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,640,963.16 : 353,517,082.02 = 74,082,899.16 : x
  2. Step 2: Convert to fraction form
    235,640,963.16/353,517,082.02 = 74,082,899.16/x
  3. Step 3: Cross multiply
    235,640,963.16x = 353,517,082.02 × 74,082,899.16
  4. Step 4: Simplify right side
    235,640,963.16x = 26,189,570,338,625,108
  5. Step 5: Solve for x
    x = 26,189,570,338,625,108/235,640,963.16
  6. Step 6: Final answer
    x = 111,141,840.48

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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.