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Finding the Fourth Proportional to 291,333.76, 437,009.28 and 113,833.60

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Solution

The fourth proportional to 291,333.76, 437,009.28 and 113,833.60 is: 170,753.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,333.76 : 437,009.28 = 113,833.60 : x
  2. Step 2: Convert to fraction form
    291,333.76/437,009.28 = 113,833.60/x
  3. Step 3: Cross multiply
    291,333.76x = 437,009.28 × 113,833.60
  4. Step 4: Simplify right side
    291,333.76x = 49,746,339,575.81
  5. Step 5: Solve for x
    x = 49,746,339,575.81/291,333.76
  6. Step 6: Final answer
    x = 170,753.78

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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.