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Finding the Fourth Proportional to 250,879.40, 346,216.16 and 136,159.03

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Solution

The fourth proportional to 250,879.40, 346,216.16 and 136,159.03 is: 187,900.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,879.40 : 346,216.16 = 136,159.03 : x
  2. Step 2: Convert to fraction form
    250,879.40/346,216.16 = 136,159.03/x
  3. Step 3: Cross multiply
    250,879.40x = 346,216.16 × 136,159.03
  4. Step 4: Simplify right side
    250,879.40x = 47,140,455,835.13
  5. Step 5: Solve for x
    x = 47,140,455,835.13/250,879.40
  6. Step 6: Final answer
    x = 187,900.87

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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.