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Finding the Fourth Proportional to 250,898.58, 346,229.64 and 137,723.76

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Solution

The fourth proportional to 250,898.58, 346,229.64 and 137,723.76 is: 190,053.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,898.58 : 346,229.64 = 137,723.76 : x
  2. Step 2: Convert to fraction form
    250,898.58/346,229.64 = 137,723.76/x
  3. Step 3: Cross multiply
    250,898.58x = 346,229.64 × 137,723.76
  4. Step 4: Simplify right side
    250,898.58x = 47,684,047,844.25
  5. Step 5: Solve for x
    x = 47,684,047,844.25/250,898.58
  6. Step 6: Final answer
    x = 190,053.08

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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.