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Finding the Fourth Proportional to 163,691.94, 225,897.21 and 96,623.94

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Solution

The fourth proportional to 163,691.94, 225,897.21 and 96,623.94 is: 133,342.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,691.94 : 225,897.21 = 96,623.94 : x
  2. Step 2: Convert to fraction form
    163,691.94/225,897.21 = 96,623.94/x
  3. Step 3: Cross multiply
    163,691.94x = 225,897.21 × 96,623.94
  4. Step 4: Simplify right side
    163,691.94x = 21,827,078,465.21
  5. Step 5: Solve for x
    x = 21,827,078,465.21/163,691.94
  6. Step 6: Final answer
    x = 133,342.41

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1.5x scale

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.