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Finding the Fourth Proportional to 113,762.66, 156,991.34 and 62,775.86

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Solution

The fourth proportional to 113,762.66, 156,991.34 and 62,775.86 is: 86,630.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,762.66 : 156,991.34 = 62,775.86 : x
  2. Step 2: Convert to fraction form
    113,762.66/156,991.34 = 62,775.86/x
  3. Step 3: Cross multiply
    113,762.66x = 156,991.34 × 62,775.86
  4. Step 4: Simplify right side
    113,762.66x = 9,855,265,753.04
  5. Step 5: Solve for x
    x = 9,855,265,753.04/113,762.66
  6. Step 6: Final answer
    x = 86,630.06

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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.