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Finding the Fourth Proportional to 201,293.53, 277,785.65 and 115,253.83

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Solution

The fourth proportional to 201,293.53, 277,785.65 and 115,253.83 is: 159,050.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,293.53 : 277,785.65 = 115,253.83 : x
  2. Step 2: Convert to fraction form
    201,293.53/277,785.65 = 115,253.83/x
  3. Step 3: Cross multiply
    201,293.53x = 277,785.65 × 115,253.83
  4. Step 4: Simplify right side
    201,293.53x = 32,015,860,081.54
  5. Step 5: Solve for x
    x = 32,015,860,081.54/201,293.53
  6. Step 6: Final answer
    x = 159,050.62

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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.