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Finding the Fourth Proportional to 334,388.25, 501,590.08 and 81,670.84

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Solution

The fourth proportional to 334,388.25, 501,590.08 and 81,670.84 is: 122,508.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,388.25 : 501,590.08 = 81,670.84 : x
  2. Step 2: Convert to fraction form
    334,388.25/501,590.08 = 81,670.84/x
  3. Step 3: Cross multiply
    334,388.25x = 501,590.08 × 81,670.84
  4. Step 4: Simplify right side
    334,388.25x = 40,965,282,965.09
  5. Step 5: Solve for x
    x = 40,965,282,965.09/334,388.25
  6. Step 6: Final answer
    x = 122,508.14

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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.