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Finding the Fourth Proportional to 292,853.40, 439,277.94 and 82,486.68

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Solution

The fourth proportional to 292,853.40, 439,277.94 and 82,486.68 is: 123,729.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,853.40 : 439,277.94 = 82,486.68 : x
  2. Step 2: Convert to fraction form
    292,853.40/439,277.94 = 82,486.68/x
  3. Step 3: Cross multiply
    292,853.40x = 439,277.94 × 82,486.68
  4. Step 4: Simplify right side
    292,853.40x = 36,234,578,867.84
  5. Step 5: Solve for x
    x = 36,234,578,867.84/292,853.40
  6. Step 6: Final answer
    x = 123,729.41

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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.