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Finding the Fourth Proportional to 92,835.32, 139,127.14 and 67,757.72

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Solution

The fourth proportional to 92,835.32, 139,127.14 and 67,757.72 is: 101,544.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,835.32 : 139,127.14 = 67,757.72 : x
  2. Step 2: Convert to fraction form
    92,835.32/139,127.14 = 67,757.72/x
  3. Step 3: Cross multiply
    92,835.32x = 139,127.14 × 67,757.72
  4. Step 4: Simplify right side
    92,835.32x = 9,426,937,796.52
  5. Step 5: Solve for x
    x = 9,426,937,796.52/92,835.32
  6. Step 6: Final answer
    x = 101,544.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.