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Finding the Fourth Proportional to 158,975.48, 219,386.11 and 87,360.14

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Solution

The fourth proportional to 158,975.48, 219,386.11 and 87,360.14 is: 120,556.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,975.48 : 219,386.11 = 87,360.14 : x
  2. Step 2: Convert to fraction form
    158,975.48/219,386.11 = 87,360.14/x
  3. Step 3: Cross multiply
    158,975.48x = 219,386.11 × 87,360.14
  4. Step 4: Simplify right side
    158,975.48x = 19,165,601,283.66
  5. Step 5: Solve for x
    x = 19,165,601,283.66/158,975.48
  6. Step 6: Final answer
    x = 120,556.96

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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.