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Finding the Fourth Proportional to 291,565.60, 437,218.80 and 114,013.60

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Solution

The fourth proportional to 291,565.60, 437,218.80 and 114,013.60 is: 170,969.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,565.60 : 437,218.80 = 114,013.60 : x
  2. Step 2: Convert to fraction form
    291,565.60/437,218.80 = 114,013.60/x
  3. Step 3: Cross multiply
    291,565.60x = 437,218.80 × 114,013.60
  4. Step 4: Simplify right side
    291,565.60x = 49,848,889,375.68
  5. Step 5: Solve for x
    x = 49,848,889,375.68/291,565.60
  6. Step 6: Final answer
    x = 170,969.72

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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.