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Finding the Fourth Proportional to 251,486.58, 377,276.44 and 83,018.64

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Solution

The fourth proportional to 251,486.58, 377,276.44 and 83,018.64 is: 124,543.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,486.58 : 377,276.44 = 83,018.64 : x
  2. Step 2: Convert to fraction form
    251,486.58/377,276.44 = 83,018.64/x
  3. Step 3: Cross multiply
    251,486.58x = 377,276.44 × 83,018.64
  4. Step 4: Simplify right side
    251,486.58x = 31,320,976,952.84
  5. Step 5: Solve for x
    x = 31,320,976,952.84/251,486.58
  6. Step 6: Final answer
    x = 124,543.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.