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Finding the Fourth Proportional to 119,395.01, 164,767.77 and 65,682.90

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Solution

The fourth proportional to 119,395.01, 164,767.77 and 65,682.90 is: 90,643.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,395.01 : 164,767.77 = 65,682.90 : x
  2. Step 2: Convert to fraction form
    119,395.01/164,767.77 = 65,682.90/x
  3. Step 3: Cross multiply
    119,395.01x = 164,767.77 × 65,682.90
  4. Step 4: Simplify right side
    119,395.01x = 10,822,424,960.13
  5. Step 5: Solve for x
    x = 10,822,424,960.13/119,395.01
  6. Step 6: Final answer
    x = 90,643.86

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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.