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Finding the Fourth Proportional to 164,963.64, 247,425.12 and 70,231.92

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Solution

The fourth proportional to 164,963.64, 247,425.12 and 70,231.92 is: 105,339.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,963.64 : 247,425.12 = 70,231.92 : x
  2. Step 2: Convert to fraction form
    164,963.64/247,425.12 = 70,231.92/x
  3. Step 3: Cross multiply
    164,963.64x = 247,425.12 × 70,231.92
  4. Step 4: Simplify right side
    164,963.64x = 17,377,141,233.83
  5. Step 5: Solve for x
    x = 17,377,141,233.83/164,963.64
  6. Step 6: Final answer
    x = 105,339.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.