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Finding the Fourth Proportional to 163,670.52, 225,877.14 and 100,020.48

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Solution

The fourth proportional to 163,670.52, 225,877.14 and 100,020.48 is: 138,035.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,670.52 : 225,877.14 = 100,020.48 : x
  2. Step 2: Convert to fraction form
    163,670.52/225,877.14 = 100,020.48/x
  3. Step 3: Cross multiply
    163,670.52x = 225,877.14 × 100,020.48
  4. Step 4: Simplify right side
    163,670.52x = 22,592,339,963.83
  5. Step 5: Solve for x
    x = 22,592,339,963.83/163,670.52
  6. Step 6: Final answer
    x = 138,035.49

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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.