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Finding the Fourth Proportional to 117,008.90, 175,513.35 and 57,959.90

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Solution

The fourth proportional to 117,008.90, 175,513.35 and 57,959.90 is: 86,939.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,008.90 : 175,513.35 = 57,959.90 : x
  2. Step 2: Convert to fraction form
    117,008.90/175,513.35 = 57,959.90/x
  3. Step 3: Cross multiply
    117,008.90x = 175,513.35 × 57,959.90
  4. Step 4: Simplify right side
    117,008.90x = 10,172,736,214.67
  5. Step 5: Solve for x
    x = 10,172,736,214.67/117,008.90
  6. Step 6: Final answer
    x = 86,939.85

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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.