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Finding the Fourth Proportional to 403,212.62, 604,909.11 and 122,751.74

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Solution

The fourth proportional to 403,212.62, 604,909.11 and 122,751.74 is: 184,155.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,212.62 : 604,909.11 = 122,751.74 : x
  2. Step 2: Convert to fraction form
    403,212.62/604,909.11 = 122,751.74/x
  3. Step 3: Cross multiply
    403,212.62x = 604,909.11 × 122,751.74
  4. Step 4: Simplify right side
    403,212.62x = 74,253,645,794.35
  5. Step 5: Solve for x
    x = 74,253,645,794.35/403,212.62
  6. Step 6: Final answer
    x = 184,155.06

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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.