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Finding the Fourth Proportional to 111,253,964.40, 166,951,805.40 and 65,195,744.40

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Solution

The fourth proportional to 111,253,964.40, 166,951,805.40 and 65,195,744.40 is: 97,835,140.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,253,964.40 : 166,951,805.40 = 65,195,744.40 : x
  2. Step 2: Convert to fraction form
    111,253,964.40/166,951,805.40 = 65,195,744.40/x
  3. Step 3: Cross multiply
    111,253,964.40x = 166,951,805.40 × 65,195,744.40
  4. Step 4: Simplify right side
    111,253,964.40x = 10,884,547,231,976,940
  5. Step 5: Solve for x
    x = 10,884,547,231,976,940/111,253,964.40
  6. Step 6: Final answer
    x = 97,835,140.44

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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.