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Finding the Fourth Proportional to 291,781.60, 437,497.20 and 114,076.72

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Solution

The fourth proportional to 291,781.60, 437,497.20 and 114,076.72 is: 171,046.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,781.60 : 437,497.20 = 114,076.72 : x
  2. Step 2: Convert to fraction form
    291,781.60/437,497.20 = 114,076.72/x
  3. Step 3: Cross multiply
    291,781.60x = 437,497.20 × 114,076.72
  4. Step 4: Simplify right side
    291,781.60x = 49,908,245,585.18
  5. Step 5: Solve for x
    x = 49,908,245,585.18/291,781.60
  6. Step 6: Final answer
    x = 171,046.58

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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.