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Finding the Fourth Proportional to 107,492.80, 161,240.55 and 28,606.54

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Solution

The fourth proportional to 107,492.80, 161,240.55 and 28,606.54 is: 42,910.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,492.80 : 161,240.55 = 28,606.54 : x
  2. Step 2: Convert to fraction form
    107,492.80/161,240.55 = 28,606.54/x
  3. Step 3: Cross multiply
    107,492.80x = 161,240.55 × 28,606.54
  4. Step 4: Simplify right side
    107,492.80x = 4,612,534,243.20
  5. Step 5: Solve for x
    x = 4,612,534,243.20/107,492.80
  6. Step 6: Final answer
    x = 42,910.17

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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.