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Finding the Fourth Proportional to 151,346.60, 208,873.05 and 113,039.64

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Solution

The fourth proportional to 151,346.60, 208,873.05 and 113,039.64 is: 156,005.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,346.60 : 208,873.05 = 113,039.64 : x
  2. Step 2: Convert to fraction form
    151,346.60/208,873.05 = 113,039.64/x
  3. Step 3: Cross multiply
    151,346.60x = 208,873.05 × 113,039.64
  4. Step 4: Simplify right side
    151,346.60x = 23,610,933,953.80
  5. Step 5: Solve for x
    x = 23,610,933,953.80/151,346.60
  6. Step 6: Final answer
    x = 156,005.71

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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.