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Finding the Fourth Proportional to 173,262.92, 239,102.79 and 97,811.42

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Solution

The fourth proportional to 173,262.92, 239,102.79 and 97,811.42 is: 134,979.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,262.92 : 239,102.79 = 97,811.42 : x
  2. Step 2: Convert to fraction form
    173,262.92/239,102.79 = 97,811.42/x
  3. Step 3: Cross multiply
    173,262.92x = 239,102.79 × 97,811.42
  4. Step 4: Simplify right side
    173,262.92x = 23,386,983,415.86
  5. Step 5: Solve for x
    x = 23,386,983,415.86/173,262.92
  6. Step 6: Final answer
    x = 134,979.74

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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.