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Finding the Fourth Proportional to 219,954,836.70, 330,118,259.40 and 90,655,241.40

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Solution

The fourth proportional to 219,954,836.70, 330,118,259.40 and 90,655,241.40 is: 136,059,524.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,954,836.70 : 330,118,259.40 = 90,655,241.40 : x
  2. Step 2: Convert to fraction form
    219,954,836.70/330,118,259.40 = 90,655,241.40/x
  3. Step 3: Cross multiply
    219,954,836.70x = 330,118,259.40 × 90,655,241.40
  4. Step 4: Simplify right side
    219,954,836.70x = 29,926,950,496,454,820
  5. Step 5: Solve for x
    x = 29,926,950,496,454,820/219,954,836.70
  6. Step 6: Final answer
    x = 136,059,524.52

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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.