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Finding the Fourth Proportional to 291,963.60, 437,621.40 and 114,411.60

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Solution

The fourth proportional to 291,963.60, 437,621.40 and 114,411.60 is: 171,490.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,963.60 : 437,621.40 = 114,411.60 : x
  2. Step 2: Convert to fraction form
    291,963.60/437,621.40 = 114,411.60/x
  3. Step 3: Cross multiply
    291,963.60x = 437,621.40 × 114,411.60
  4. Step 4: Simplify right side
    291,963.60x = 50,068,964,568.24
  5. Step 5: Solve for x
    x = 50,068,964,568.24/291,963.60
  6. Step 6: Final answer
    x = 171,490.43

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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.