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Finding the Fourth Proportional to 119,480.16, 164,881.37 and 65,764.02

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Solution

The fourth proportional to 119,480.16, 164,881.37 and 65,764.02 is: 90,753.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,480.16 : 164,881.37 = 65,764.02 : x
  2. Step 2: Convert to fraction form
    119,480.16/164,881.37 = 65,764.02/x
  3. Step 3: Cross multiply
    119,480.16x = 164,881.37 × 65,764.02
  4. Step 4: Simplify right side
    119,480.16x = 10,843,261,385.49
  5. Step 5: Solve for x
    x = 10,843,261,385.49/119,480.16
  6. Step 6: Final answer
    x = 90,753.66

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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.