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Finding the Fourth Proportional to 165,391,569.68, 248,087,354.51 and 165,391,569.68

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Solution

The fourth proportional to 165,391,569.68, 248,087,354.51 and 165,391,569.68 is: 248,087,354.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,391,569.68 : 248,087,354.51 = 165,391,569.68 : x
  2. Step 2: Convert to fraction form
    165,391,569.68/248,087,354.51 = 165,391,569.68/x
  3. Step 3: Cross multiply
    165,391,569.68x = 248,087,354.51 × 165,391,569.68
  4. Step 4: Simplify right side
    165,391,569.68x = 41,031,556,979,340,568
  5. Step 5: Solve for x
    x = 41,031,556,979,340,568/165,391,569.68
  6. Step 6: Final answer
    x = 248,087,354.51

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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.