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Finding the Fourth Proportional to 181,805.10, 272,707.65 and 103,073.10

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Solution

The fourth proportional to 181,805.10, 272,707.65 and 103,073.10 is: 154,609.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,805.10 : 272,707.65 = 103,073.10 : x
  2. Step 2: Convert to fraction form
    181,805.10/272,707.65 = 103,073.10/x
  3. Step 3: Cross multiply
    181,805.10x = 272,707.65 × 103,073.10
  4. Step 4: Simplify right side
    181,805.10x = 28,108,822,879.22
  5. Step 5: Solve for x
    x = 28,108,822,879.22/181,805.10
  6. Step 6: Final answer
    x = 154,609.65

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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.