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Finding the Fourth Proportional to 111,229.69, 153,496.97 and 63,482.01

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Solution

The fourth proportional to 111,229.69, 153,496.97 and 63,482.01 is: 87,605.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,229.69 : 153,496.97 = 63,482.01 : x
  2. Step 2: Convert to fraction form
    111,229.69/153,496.97 = 63,482.01/x
  3. Step 3: Cross multiply
    111,229.69x = 153,496.97 × 63,482.01
  4. Step 4: Simplify right side
    111,229.69x = 9,744,296,105.16
  5. Step 5: Solve for x
    x = 9,744,296,105.16/111,229.69
  6. Step 6: Final answer
    x = 87,605.17

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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.