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Finding the Fourth Proportional to 92,808.69, 139,221.08 and 29,637.80

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Solution

The fourth proportional to 92,808.69, 139,221.08 and 29,637.80 is: 44,459.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,808.69 : 139,221.08 = 29,637.80 : x
  2. Step 2: Convert to fraction form
    92,808.69/139,221.08 = 29,637.80/x
  3. Step 3: Cross multiply
    92,808.69x = 139,221.08 × 29,637.80
  4. Step 4: Simplify right side
    92,808.69x = 4,126,206,313.75
  5. Step 5: Solve for x
    x = 4,126,206,313.75/92,808.69
  6. Step 6: Final answer
    x = 44,459.27

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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.