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Finding the Fourth Proportional to 119,304.32, 164,636.48 and 65,589.28

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Solution

The fourth proportional to 119,304.32, 164,636.48 and 65,589.28 is: 90,511.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,304.32 : 164,636.48 = 65,589.28 : x
  2. Step 2: Convert to fraction form
    119,304.32/164,636.48 = 65,589.28/x
  3. Step 3: Cross multiply
    119,304.32x = 164,636.48 × 65,589.28
  4. Step 4: Simplify right side
    119,304.32x = 10,798,388,184.93
  5. Step 5: Solve for x
    x = 10,798,388,184.93/119,304.32
  6. Step 6: Final answer
    x = 90,511.29

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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.