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Finding the Fourth Proportional to 223,868,813.40, 335,803,220.10 and 68,422,320.90

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Solution

The fourth proportional to 223,868,813.40, 335,803,220.10 and 68,422,320.90 is: 102,633,481.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,868,813.40 : 335,803,220.10 = 68,422,320.90 : x
  2. Step 2: Convert to fraction form
    223,868,813.40/335,803,220.10 = 68,422,320.90/x
  3. Step 3: Cross multiply
    223,868,813.40x = 335,803,220.10 × 68,422,320.90
  4. Step 4: Simplify right side
    223,868,813.40x = 22,976,435,684,935,532
  5. Step 5: Solve for x
    x = 22,976,435,684,935,532/223,868,813.40
  6. Step 6: Final answer
    x = 102,633,481.35

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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.