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Finding the Fourth Proportional to 86,564.76, 119,192.88 and 73,789.29

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Solution

The fourth proportional to 86,564.76, 119,192.88 and 73,789.29 is: 101,602.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,564.76 : 119,192.88 = 73,789.29 : x
  2. Step 2: Convert to fraction form
    86,564.76/119,192.88 = 73,789.29/x
  3. Step 3: Cross multiply
    86,564.76x = 119,192.88 × 73,789.29
  4. Step 4: Simplify right side
    86,564.76x = 8,795,157,988.26
  5. Step 5: Solve for x
    x = 8,795,157,988.26/86,564.76
  6. Step 6: Final answer
    x = 101,602.06

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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.