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Finding the Fourth Proportional to 92,750.82, 139,032.32 and 36,630.50

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Solution

The fourth proportional to 92,750.82, 139,032.32 and 36,630.50 is: 54,908.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,750.82 : 139,032.32 = 36,630.50 : x
  2. Step 2: Convert to fraction form
    92,750.82/139,032.32 = 36,630.50/x
  3. Step 3: Cross multiply
    92,750.82x = 139,032.32 × 36,630.50
  4. Step 4: Simplify right side
    92,750.82x = 5,092,823,214.61
  5. Step 5: Solve for x
    x = 5,092,823,214.61/92,750.82
  6. Step 6: Final answer
    x = 54,908.66

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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.