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Finding the Fourth Proportional to 403,210.62, 604,906.11 and 122,749.74

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Solution

The fourth proportional to 403,210.62, 604,906.11 and 122,749.74 is: 184,152.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,210.62 : 604,906.11 = 122,749.74 : x
  2. Step 2: Convert to fraction form
    403,210.62/604,906.11 = 122,749.74/x
  3. Step 3: Cross multiply
    403,210.62x = 604,906.11 × 122,749.74
  4. Step 4: Simplify right side
    403,210.62x = 74,252,067,726.91
  5. Step 5: Solve for x
    x = 74,252,067,726.91/403,210.62
  6. Step 6: Final answer
    x = 184,152.06

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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.