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Finding the Fourth Proportional to 124,815,998.90, 186,972,055.95 and 124,815,998.90

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Solution

The fourth proportional to 124,815,998.90, 186,972,055.95 and 124,815,998.90 is: 186,972,055.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,815,998.90 : 186,972,055.95 = 124,815,998.90 : x
  2. Step 2: Convert to fraction form
    124,815,998.90/186,972,055.95 = 124,815,998.90/x
  3. Step 3: Cross multiply
    124,815,998.90x = 186,972,055.95 × 124,815,998.90
  4. Step 4: Simplify right side
    124,815,998.90x = 23,337,103,929,785,940
  5. Step 5: Solve for x
    x = 23,337,103,929,785,940/124,815,998.90
  6. Step 6: Final answer
    x = 186,972,055.95

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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.