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Finding the Fourth Proportional to 372,763.56, 559,066.96 and 120,066.68

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Solution

The fourth proportional to 372,763.56, 559,066.96 and 120,066.68 is: 180,074.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,763.56 : 559,066.96 = 120,066.68 : x
  2. Step 2: Convert to fraction form
    372,763.56/559,066.96 = 120,066.68/x
  3. Step 3: Cross multiply
    372,763.56x = 559,066.96 × 120,066.68
  4. Step 4: Simplify right side
    372,763.56x = 67,125,313,784.89
  5. Step 5: Solve for x
    x = 67,125,313,784.89/372,763.56
  6. Step 6: Final answer
    x = 180,074.77

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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.