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Finding the Fourth Proportional to 120,304.94, 180,482.31 and 36,061.70

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Solution

The fourth proportional to 120,304.94, 180,482.31 and 36,061.70 is: 54,100.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,304.94 : 180,482.31 = 36,061.70 : x
  2. Step 2: Convert to fraction form
    120,304.94/180,482.31 = 36,061.70/x
  3. Step 3: Cross multiply
    120,304.94x = 180,482.31 × 36,061.70
  4. Step 4: Simplify right side
    120,304.94x = 6,508,498,016.12
  5. Step 5: Solve for x
    x = 6,508,498,016.12/120,304.94
  6. Step 6: Final answer
    x = 54,100.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.