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Finding the Fourth Proportional to 92,796.84, 139,149.90 and 64,730.34

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Solution

The fourth proportional to 92,796.84, 139,149.90 and 64,730.34 is: 97,063.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,796.84 : 139,149.90 = 64,730.34 : x
  2. Step 2: Convert to fraction form
    92,796.84/139,149.90 = 64,730.34/x
  3. Step 3: Cross multiply
    92,796.84x = 139,149.90 × 64,730.34
  4. Step 4: Simplify right side
    92,796.84x = 9,007,220,337.97
  5. Step 5: Solve for x
    x = 9,007,220,337.97/92,796.84
  6. Step 6: Final answer
    x = 97,063.87

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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.