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Finding the Fourth Proportional to 111,587.44, 153,990.66 and 60,599.92

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Solution

The fourth proportional to 111,587.44, 153,990.66 and 60,599.92 is: 83,627.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,587.44 : 153,990.66 = 60,599.92 : x
  2. Step 2: Convert to fraction form
    111,587.44/153,990.66 = 60,599.92/x
  3. Step 3: Cross multiply
    111,587.44x = 153,990.66 × 60,599.92
  4. Step 4: Simplify right side
    111,587.44x = 9,331,821,676.75
  5. Step 5: Solve for x
    x = 9,331,821,676.75/111,587.44
  6. Step 6: Final answer
    x = 83,627.89

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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.