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Finding the Fourth Proportional to 111,221,920.80, 166,832,881.20 and 111,221,920.80

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Solution

The fourth proportional to 111,221,920.80, 166,832,881.20 and 111,221,920.80 is: 166,832,881.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,221,920.80 : 166,832,881.20 = 111,221,920.80 : x
  2. Step 2: Convert to fraction form
    111,221,920.80/166,832,881.20 = 111,221,920.80/x
  3. Step 3: Cross multiply
    111,221,920.80x = 166,832,881.20 × 111,221,920.80
  4. Step 4: Simplify right side
    111,221,920.80x = 18,555,473,499,662,208
  5. Step 5: Solve for x
    x = 18,555,473,499,662,208/111,221,920.80
  6. Step 6: Final answer
    x = 166,832,881.20

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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.