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Finding the Fourth Proportional to 158,844.93, 219,206.60 and 86,247.93

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Solution

The fourth proportional to 158,844.93, 219,206.60 and 86,247.93 is: 119,022.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,844.93 : 219,206.60 = 86,247.93 : x
  2. Step 2: Convert to fraction form
    158,844.93/219,206.60 = 86,247.93/x
  3. Step 3: Cross multiply
    158,844.93x = 219,206.60 × 86,247.93
  4. Step 4: Simplify right side
    158,844.93x = 18,906,115,492.34
  5. Step 5: Solve for x
    x = 18,906,115,492.34/158,844.93
  6. Step 6: Final answer
    x = 119,022.47

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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.