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Finding the Fourth Proportional to 120,030.48, 180,054.48 and 41,144.04

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Solution

The fourth proportional to 120,030.48, 180,054.48 and 41,144.04 is: 61,719.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,030.48 : 180,054.48 = 41,144.04 : x
  2. Step 2: Convert to fraction form
    120,030.48/180,054.48 = 41,144.04/x
  3. Step 3: Cross multiply
    120,030.48x = 180,054.48 × 41,144.04
  4. Step 4: Simplify right side
    120,030.48x = 7,408,168,727.30
  5. Step 5: Solve for x
    x = 7,408,168,727.30/120,030.48
  6. Step 6: Final answer
    x = 61,719.06

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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.