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Finding the Fourth Proportional to 98,383.74, 147,487.95 and 36,039.66

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Solution

The fourth proportional to 98,383.74, 147,487.95 and 36,039.66 is: 54,027.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,383.74 : 147,487.95 = 36,039.66 : x
  2. Step 2: Convert to fraction form
    98,383.74/147,487.95 = 36,039.66/x
  3. Step 3: Cross multiply
    98,383.74x = 147,487.95 × 36,039.66
  4. Step 4: Simplify right side
    98,383.74x = 5,315,415,572.10
  5. Step 5: Solve for x
    x = 5,315,415,572.10/98,383.74
  6. Step 6: Final answer
    x = 54,027.38

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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.