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Finding the Fourth Proportional to 113,157.36, 156,156.84 and 62,856

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Solution

The fourth proportional to 113,157.36, 156,156.84 and 62,856 is: 86,741.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,157.36 : 156,156.84 = 62,856 : x
  2. Step 2: Convert to fraction form
    113,157.36/156,156.84 = 62,856/x
  3. Step 3: Cross multiply
    113,157.36x = 156,156.84 × 62,856
  4. Step 4: Simplify right side
    113,157.36x = 9,815,394,335.04
  5. Step 5: Solve for x
    x = 9,815,394,335.04/113,157.36
  6. Step 6: Final answer
    x = 86,741.10

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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.