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Finding the Fourth Proportional to 111,603.24, 154,013.94 and 63,207.72

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Solution

The fourth proportional to 111,603.24, 154,013.94 and 63,207.72 is: 87,227.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,603.24 : 154,013.94 = 63,207.72 : x
  2. Step 2: Convert to fraction form
    111,603.24/154,013.94 = 63,207.72/x
  3. Step 3: Cross multiply
    111,603.24x = 154,013.94 × 63,207.72
  4. Step 4: Simplify right side
    111,603.24x = 9,734,869,995.62
  5. Step 5: Solve for x
    x = 9,734,869,995.62/111,603.24
  6. Step 6: Final answer
    x = 87,227.49

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1.5x scale

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.