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Finding the Fourth Proportional to 119,297.29, 164,623.40 and 65,582.30

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Solution

The fourth proportional to 119,297.29, 164,623.40 and 65,582.30 is: 90,499.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,297.29 : 164,623.40 = 65,582.30 : x
  2. Step 2: Convert to fraction form
    119,297.29/164,623.40 = 65,582.30/x
  3. Step 3: Cross multiply
    119,297.29x = 164,623.40 × 65,582.30
  4. Step 4: Simplify right side
    119,297.29x = 10,796,381,205.82
  5. Step 5: Solve for x
    x = 10,796,381,205.82/119,297.29
  6. Step 6: Final answer
    x = 90,499.80

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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.