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Finding the Fourth Proportional to 403,560,443.80, 605,340,665.70 and 112,472,493.40

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Solution

The fourth proportional to 403,560,443.80, 605,340,665.70 and 112,472,493.40 is: 168,708,740.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,560,443.80 : 605,340,665.70 = 112,472,493.40 : x
  2. Step 2: Convert to fraction form
    403,560,443.80/605,340,665.70 = 112,472,493.40/x
  3. Step 3: Cross multiply
    403,560,443.80x = 605,340,665.70 × 112,472,493.40
  4. Step 4: Simplify right side
    403,560,443.80x = 68,084,174,027,694,864
  5. Step 5: Solve for x
    x = 68,084,174,027,694,864/403,560,443.80
  6. Step 6: Final answer
    x = 168,708,740.10

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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.