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Finding the Fourth Proportional to 74,495,371.78, 112,442,813.26 and 74,495,371.78

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Solution

The fourth proportional to 74,495,371.78, 112,442,813.26 and 74,495,371.78 is: 112,442,813.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,495,371.78 : 112,442,813.26 = 74,495,371.78 : x
  2. Step 2: Convert to fraction form
    74,495,371.78/112,442,813.26 = 74,495,371.78/x
  3. Step 3: Cross multiply
    74,495,371.78x = 112,442,813.26 × 74,495,371.78
  4. Step 4: Simplify right side
    74,495,371.78x = 8,376,469,177,792,814
  5. Step 5: Solve for x
    x = 8,376,469,177,792,814/74,495,371.78
  6. Step 6: Final answer
    x = 112,442,813.26

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.