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Finding the Fourth Proportional to 113,315.40, 170,104.05 and 60,827.40

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Solution

The fourth proportional to 113,315.40, 170,104.05 and 60,827.40 is: 91,311.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,315.40 : 170,104.05 = 60,827.40 : x
  2. Step 2: Convert to fraction form
    113,315.40/170,104.05 = 60,827.40/x
  3. Step 3: Cross multiply
    113,315.40x = 170,104.05 × 60,827.40
  4. Step 4: Simplify right side
    113,315.40x = 10,346,987,090.97
  5. Step 5: Solve for x
    x = 10,346,987,090.97/113,315.40
  6. Step 6: Final answer
    x = 91,311.39

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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.