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Finding the Fourth Proportional to 68,070,388.80, 102,105,583.20 and 22,012,168.80

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Solution

The fourth proportional to 68,070,388.80, 102,105,583.20 and 22,012,168.80 is: 33,018,253.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,070,388.80 : 102,105,583.20 = 22,012,168.80 : x
  2. Step 2: Convert to fraction form
    68,070,388.80/102,105,583.20 = 22,012,168.80/x
  3. Step 3: Cross multiply
    68,070,388.80x = 102,105,583.20 × 22,012,168.80
  4. Step 4: Simplify right side
    68,070,388.80x = 2,247,565,332,820,844.25
  5. Step 5: Solve for x
    x = 2,247,565,332,820,844.25/68,070,388.80
  6. Step 6: Final answer
    x = 33,018,253.20

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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.