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Finding the Fourth Proportional to 73,169, 109,613.26 and 43,497

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Solution

The fourth proportional to 73,169, 109,613.26 and 43,497 is: 65,162.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,169 : 109,613.26 = 43,497 : x
  2. Step 2: Convert to fraction form
    73,169/109,613.26 = 43,497/x
  3. Step 3: Cross multiply
    73,169x = 109,613.26 × 43,497
  4. Step 4: Simplify right side
    73,169x = 4,767,847,970.22
  5. Step 5: Solve for x
    x = 4,767,847,970.22/73,169
  6. Step 6: Final answer
    x = 65,162.13

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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.