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Finding the Fourth Proportional to 111,805.82, 154,293.19 and 64,058.14

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Solution

The fourth proportional to 111,805.82, 154,293.19 and 64,058.14 is: 88,400.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,805.82 : 154,293.19 = 64,058.14 : x
  2. Step 2: Convert to fraction form
    111,805.82/154,293.19 = 64,058.14/x
  3. Step 3: Cross multiply
    111,805.82x = 154,293.19 × 64,058.14
  4. Step 4: Simplify right side
    111,805.82x = 9,883,734,766.07
  5. Step 5: Solve for x
    x = 9,883,734,766.07/111,805.82
  6. Step 6: Final answer
    x = 88,400.90

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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.