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Finding the Fourth Proportional to 182,688.82, 251,881.16 and 139,721.02

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Solution

The fourth proportional to 182,688.82, 251,881.16 and 139,721.02 is: 192,639.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    182,688.82 : 251,881.16 = 139,721.02 : x
  2. Step 2: Convert to fraction form
    182,688.82/251,881.16 = 139,721.02/x
  3. Step 3: Cross multiply
    182,688.82x = 251,881.16 × 139,721.02
  4. Step 4: Simplify right side
    182,688.82x = 35,193,092,593.98
  5. Step 5: Solve for x
    x = 35,193,092,593.98/182,688.82
  6. Step 6: Final answer
    x = 192,639.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.