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Finding the Fourth Proportional to 403,560,441.80, 605,340,662.70 and 112,472,491.40

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Solution

The fourth proportional to 403,560,441.80, 605,340,662.70 and 112,472,491.40 is: 168,708,737.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,560,441.80 : 605,340,662.70 = 112,472,491.40 : x
  2. Step 2: Convert to fraction form
    403,560,441.80/605,340,662.70 = 112,472,491.40/x
  3. Step 3: Cross multiply
    403,560,441.80x = 605,340,662.70 × 112,472,491.40
  4. Step 4: Simplify right side
    403,560,441.80x = 68,084,172,479,596,056
  5. Step 5: Solve for x
    x = 68,084,172,479,596,056/403,560,441.80
  6. Step 6: Final answer
    x = 168,708,737.10

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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.