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Finding the Fourth Proportional to 120,347.69, 180,546.44 and 36,104.45

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Solution

The fourth proportional to 120,347.69, 180,546.44 and 36,104.45 is: 54,164.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,347.69 : 180,546.44 = 36,104.45 : x
  2. Step 2: Convert to fraction form
    120,347.69/180,546.44 = 36,104.45/x
  3. Step 3: Cross multiply
    120,347.69x = 180,546.44 × 36,104.45
  4. Step 4: Simplify right side
    120,347.69x = 6,518,528,832.40
  5. Step 5: Solve for x
    x = 6,518,528,832.40/120,347.69
  6. Step 6: Final answer
    x = 54,164.14

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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.