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Finding the Fourth Proportional to 111,805.36, 154,291.80 and 60,818.08

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Solution

The fourth proportional to 111,805.36, 154,291.80 and 60,818.08 is: 83,929.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,805.36 : 154,291.80 = 60,818.08 : x
  2. Step 2: Convert to fraction form
    111,805.36/154,291.80 = 60,818.08/x
  3. Step 3: Cross multiply
    111,805.36x = 154,291.80 × 60,818.08
  4. Step 4: Simplify right side
    111,805.36x = 9,383,731,035.74
  5. Step 5: Solve for x
    x = 9,383,731,035.74/111,805.36
  6. Step 6: Final answer
    x = 83,929.17

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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.