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Finding the Fourth Proportional to 71,850,994.40, 107,776,491.60 and 63,914,808.80

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Solution

The fourth proportional to 71,850,994.40, 107,776,491.60 and 63,914,808.80 is: 95,872,213.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,850,994.40 : 107,776,491.60 = 63,914,808.80 : x
  2. Step 2: Convert to fraction form
    71,850,994.40/107,776,491.60 = 63,914,808.80/x
  3. Step 3: Cross multiply
    71,850,994.40x = 107,776,491.60 × 63,914,808.80
  4. Step 4: Simplify right side
    71,850,994.40x = 6,888,513,853,748,805
  5. Step 5: Solve for x
    x = 6,888,513,853,748,805/71,850,994.40
  6. Step 6: Final answer
    x = 95,872,213.20

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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.