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Finding the Fourth Proportional to 303,550.16, 418,913.24 and 167,603.40

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Solution

The fourth proportional to 303,550.16, 418,913.24 and 167,603.40 is: 231,300.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,550.16 : 418,913.24 = 167,603.40 : x
  2. Step 2: Convert to fraction form
    303,550.16/418,913.24 = 167,603.40/x
  3. Step 3: Cross multiply
    303,550.16x = 418,913.24 × 167,603.40
  4. Step 4: Simplify right side
    303,550.16x = 70,211,282,491.00
  5. Step 5: Solve for x
    x = 70,211,282,491.00/303,550.16
  6. Step 6: Final answer
    x = 231,300.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.