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Finding the Fourth Proportional to 161,656.72, 223,092.48 and 93,676

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Solution

The fourth proportional to 161,656.72, 223,092.48 and 93,676 is: 129,276.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,656.72 : 223,092.48 = 93,676 : x
  2. Step 2: Convert to fraction form
    161,656.72/223,092.48 = 93,676/x
  3. Step 3: Cross multiply
    161,656.72x = 223,092.48 × 93,676
  4. Step 4: Simplify right side
    161,656.72x = 20,898,411,156.48
  5. Step 5: Solve for x
    x = 20,898,411,156.48/161,656.72
  6. Step 6: Final answer
    x = 129,276.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.