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Finding the Fourth Proportional to 403,541.95, 605,311.30 and 123,058.39

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Solution

The fourth proportional to 403,541.95, 605,311.30 and 123,058.39 is: 184,587.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,541.95 : 605,311.30 = 123,058.39 : x
  2. Step 2: Convert to fraction form
    403,541.95/605,311.30 = 123,058.39/x
  3. Step 3: Cross multiply
    403,541.95x = 605,311.30 × 123,058.39
  4. Step 4: Simplify right side
    403,541.95x = 74,488,634,026.81
  5. Step 5: Solve for x
    x = 74,488,634,026.81/403,541.95
  6. Step 6: Final answer
    x = 184,587.09

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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.