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Finding the Fourth Proportional to 164,605.80, 246,908.70 and 89,956.20

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Solution

The fourth proportional to 164,605.80, 246,908.70 and 89,956.20 is: 134,934.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,605.80 : 246,908.70 = 89,956.20 : x
  2. Step 2: Convert to fraction form
    164,605.80/246,908.70 = 89,956.20/x
  3. Step 3: Cross multiply
    164,605.80x = 246,908.70 × 89,956.20
  4. Step 4: Simplify right side
    164,605.80x = 22,210,968,398.94
  5. Step 5: Solve for x
    x = 22,210,968,398.94/164,605.80
  6. Step 6: Final answer
    x = 134,934.30

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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.