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Finding the Fourth Proportional to 250,798.80, 346,107.84 and 137,621.76

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Solution

The fourth proportional to 250,798.80, 346,107.84 and 137,621.76 is: 189,921.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,798.80 : 346,107.84 = 137,621.76 : x
  2. Step 2: Convert to fraction form
    250,798.80/346,107.84 = 137,621.76/x
  3. Step 3: Cross multiply
    250,798.80x = 346,107.84 × 137,621.76
  4. Step 4: Simplify right side
    250,798.80x = 47,631,970,090.60
  5. Step 5: Solve for x
    x = 47,631,970,090.60/250,798.80
  6. Step 6: Final answer
    x = 189,921.04

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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.