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Finding the Fourth Proportional to 250,798.08, 346,100.40 and 137,622.72

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Solution

The fourth proportional to 250,798.08, 346,100.40 and 137,622.72 is: 189,918.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,798.08 : 346,100.40 = 137,622.72 : x
  2. Step 2: Convert to fraction form
    250,798.08/346,100.40 = 137,622.72/x
  3. Step 3: Cross multiply
    250,798.08x = 346,100.40 × 137,622.72
  4. Step 4: Simplify right side
    250,798.08x = 47,631,278,441.09
  5. Step 5: Solve for x
    x = 47,631,278,441.09/250,798.08
  6. Step 6: Final answer
    x = 189,918.83

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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.