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Finding the Fourth Proportional to 92,789.82, 139,060.80 and 48,323.34

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Solution

The fourth proportional to 92,789.82, 139,060.80 and 48,323.34 is: 72,420.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,789.82 : 139,060.80 = 48,323.34 : x
  2. Step 2: Convert to fraction form
    92,789.82/139,060.80 = 48,323.34/x
  3. Step 3: Cross multiply
    92,789.82x = 139,060.80 × 48,323.34
  4. Step 4: Simplify right side
    92,789.82x = 6,719,882,319.07
  5. Step 5: Solve for x
    x = 6,719,882,319.07/92,789.82
  6. Step 6: Final answer
    x = 72,420.47

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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.