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Finding the Fourth Proportional to 92,816.82, 139,202.87 and 42,848.91

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Solution

The fourth proportional to 92,816.82, 139,202.87 and 42,848.91 is: 64,263.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,816.82 : 139,202.87 = 42,848.91 : x
  2. Step 2: Convert to fraction form
    92,816.82/139,202.87 = 42,848.91/x
  3. Step 3: Cross multiply
    92,816.82x = 139,202.87 × 42,848.91
  4. Step 4: Simplify right side
    92,816.82x = 5,964,691,034.13
  5. Step 5: Solve for x
    x = 5,964,691,034.13/92,816.82
  6. Step 6: Final answer
    x = 64,263.04

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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.