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Finding the Fourth Proportional to 115,233.66, 158,938.47 and 88,071.12

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Solution

The fourth proportional to 115,233.66, 158,938.47 and 88,071.12 is: 121,473.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,233.66 : 158,938.47 = 88,071.12 : x
  2. Step 2: Convert to fraction form
    115,233.66/158,938.47 = 88,071.12/x
  3. Step 3: Cross multiply
    115,233.66x = 158,938.47 × 88,071.12
  4. Step 4: Simplify right side
    115,233.66x = 13,997,889,063.99
  5. Step 5: Solve for x
    x = 13,997,889,063.99/115,233.66
  6. Step 6: Final answer
    x = 121,473.96

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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.