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Finding the Fourth Proportional to 161,992.48, 242,987.68 and 55,324.96

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Solution

The fourth proportional to 161,992.48, 242,987.68 and 55,324.96 is: 82,987.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,992.48 : 242,987.68 = 55,324.96 : x
  2. Step 2: Convert to fraction form
    161,992.48/242,987.68 = 55,324.96/x
  3. Step 3: Cross multiply
    161,992.48x = 242,987.68 × 55,324.96
  4. Step 4: Simplify right side
    161,992.48x = 13,443,283,676.49
  5. Step 5: Solve for x
    x = 13,443,283,676.49/161,992.48
  6. Step 6: Final answer
    x = 82,987.08

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1.5x scale

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.