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Finding the Fourth Proportional to 153,016.53, 211,102.36 and 88,473.97

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Solution

The fourth proportional to 153,016.53, 211,102.36 and 88,473.97 is: 122,059.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,016.53 : 211,102.36 = 88,473.97 : x
  2. Step 2: Convert to fraction form
    153,016.53/211,102.36 = 88,473.97/x
  3. Step 3: Cross multiply
    153,016.53x = 211,102.36 × 88,473.97
  4. Step 4: Simplify right side
    153,016.53x = 18,677,063,865.57
  5. Step 5: Solve for x
    x = 18,677,063,865.57/153,016.53
  6. Step 6: Final answer
    x = 122,059.13

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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.