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Finding the Fourth Proportional to 113,164.88, 156,167.92 and 62,181.68

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Solution

The fourth proportional to 113,164.88, 156,167.92 and 62,181.68 is: 85,810.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,164.88 : 156,167.92 = 62,181.68 : x
  2. Step 2: Convert to fraction form
    113,164.88/156,167.92 = 62,181.68/x
  3. Step 3: Cross multiply
    113,164.88x = 156,167.92 × 62,181.68
  4. Step 4: Simplify right side
    113,164.88x = 9,710,783,627.71
  5. Step 5: Solve for x
    x = 9,710,783,627.71/113,164.88
  6. Step 6: Final answer
    x = 85,810.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.