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Finding the Fourth Proportional to 113,957.74, 157,261.68 and 63,656.74

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Solution

The fourth proportional to 113,957.74, 157,261.68 and 63,656.74 is: 87,846.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,957.74 : 157,261.68 = 63,656.74 : x
  2. Step 2: Convert to fraction form
    113,957.74/157,261.68 = 63,656.74/x
  3. Step 3: Cross multiply
    113,957.74x = 157,261.68 × 63,656.74
  4. Step 4: Simplify right side
    113,957.74x = 10,010,765,557.44
  5. Step 5: Solve for x
    x = 10,010,765,557.44/113,957.74
  6. Step 6: Final answer
    x = 87,846.30

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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.