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Finding the Fourth Proportional to 151,334.53, 208,823.36 and 86,800.42

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Solution

The fourth proportional to 151,334.53, 208,823.36 and 86,800.42 is: 119,774.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,334.53 : 208,823.36 = 86,800.42 : x
  2. Step 2: Convert to fraction form
    151,334.53/208,823.36 = 86,800.42/x
  3. Step 3: Cross multiply
    151,334.53x = 208,823.36 × 86,800.42
  4. Step 4: Simplify right side
    151,334.53x = 18,125,955,353.81
  5. Step 5: Solve for x
    x = 18,125,955,353.81/151,334.53
  6. Step 6: Final answer
    x = 119,774.09

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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.