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Finding the Fourth Proportional to 165,391,572.30, 248,087,358.45 and 165,391,572.30

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Solution

The fourth proportional to 165,391,572.30, 248,087,358.45 and 165,391,572.30 is: 248,087,358.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,391,572.30 : 248,087,358.45 = 165,391,572.30 : x
  2. Step 2: Convert to fraction form
    165,391,572.30/248,087,358.45 = 165,391,572.30/x
  3. Step 3: Cross multiply
    165,391,572.30x = 248,087,358.45 × 165,391,572.30
  4. Step 4: Simplify right side
    165,391,572.30x = 41,031,558,281,799,192
  5. Step 5: Solve for x
    x = 41,031,558,281,799,192/165,391,572.30
  6. Step 6: Final answer
    x = 248,087,358.45

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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.