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Finding the Fourth Proportional to 338,755.04, 508,127.64 and 82,588.64

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Solution

The fourth proportional to 338,755.04, 508,127.64 and 82,588.64 is: 123,881.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,755.04 : 508,127.64 = 82,588.64 : x
  2. Step 2: Convert to fraction form
    338,755.04/508,127.64 = 82,588.64/x
  3. Step 3: Cross multiply
    338,755.04x = 508,127.64 × 82,588.64
  4. Step 4: Simplify right side
    338,755.04x = 41,965,570,734.01
  5. Step 5: Solve for x
    x = 41,965,570,734.01/338,755.04
  6. Step 6: Final answer
    x = 123,881.76

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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.