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Finding the Fourth Proportional to 251,164.80, 346,605.12 and 136,441.92

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Solution

The fourth proportional to 251,164.80, 346,605.12 and 136,441.92 is: 188,288.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,164.80 : 346,605.12 = 136,441.92 : x
  2. Step 2: Convert to fraction form
    251,164.80/346,605.12 = 136,441.92/x
  3. Step 3: Cross multiply
    251,164.80x = 346,605.12 × 136,441.92
  4. Step 4: Simplify right side
    251,164.80x = 47,291,468,054.63
  5. Step 5: Solve for x
    x = 47,291,468,054.63/251,164.80
  6. Step 6: Final answer
    x = 188,288.60

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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.