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Finding the Fourth Proportional to 220,062,212.40, 329,809,883.40 and 168,689,582.40

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Solution

The fourth proportional to 220,062,212.40, 329,809,883.40 and 168,689,582.40 is: 252,817,105.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,062,212.40 : 329,809,883.40 = 168,689,582.40 : x
  2. Step 2: Convert to fraction form
    220,062,212.40/329,809,883.40 = 168,689,582.40/x
  3. Step 3: Cross multiply
    220,062,212.40x = 329,809,883.40 × 168,689,582.40
  4. Step 4: Simplify right side
    220,062,212.40x = 55,635,491,502,138,688
  5. Step 5: Solve for x
    x = 55,635,491,502,138,688/220,062,212.40
  6. Step 6: Final answer
    x = 252,817,105.20

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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.