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Finding the Fourth Proportional to 403,360.82, 605,046.08 and 122,880.50

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Solution

The fourth proportional to 403,360.82, 605,046.08 and 122,880.50 is: 184,322.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,360.82 : 605,046.08 = 122,880.50 : x
  2. Step 2: Convert to fraction form
    403,360.82/605,046.08 = 122,880.50/x
  3. Step 3: Cross multiply
    403,360.82x = 605,046.08 × 122,880.50
  4. Step 4: Simplify right side
    403,360.82x = 74,348,362,115.41
  5. Step 5: Solve for x
    x = 74,348,362,115.41/403,360.82
  6. Step 6: Final answer
    x = 184,322.22

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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.