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Finding the Fourth Proportional to 119,304.66, 164,640.83 and 65,590.59

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Solution

The fourth proportional to 119,304.66, 164,640.83 and 65,590.59 is: 90,515.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,304.66 : 164,640.83 = 65,590.59 : x
  2. Step 2: Convert to fraction form
    119,304.66/164,640.83 = 65,590.59/x
  3. Step 3: Cross multiply
    119,304.66x = 164,640.83 × 65,590.59
  4. Step 4: Simplify right side
    119,304.66x = 10,798,888,849.84
  5. Step 5: Solve for x
    x = 10,798,888,849.84/119,304.66
  6. Step 6: Final answer
    x = 90,515.23

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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.