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Finding the Fourth Proportional to 113,179.56, 156,192.72 and 62,878.56

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Solution

The fourth proportional to 113,179.56, 156,192.72 and 62,878.56 is: 86,775.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,179.56 : 156,192.72 = 62,878.56 : x
  2. Step 2: Convert to fraction form
    113,179.56/156,192.72 = 62,878.56/x
  3. Step 3: Cross multiply
    113,179.56x = 156,192.72 × 62,878.56
  4. Step 4: Simplify right side
    113,179.56x = 9,821,173,316.08
  5. Step 5: Solve for x
    x = 9,821,173,316.08/113,179.56
  6. Step 6: Final answer
    x = 86,775.15

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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.