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Finding the Fourth Proportional to 80,652, 111,299.76 and 45,324

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Solution

The fourth proportional to 80,652, 111,299.76 and 45,324 is: 62,547.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,652 : 111,299.76 = 45,324 : x
  2. Step 2: Convert to fraction form
    80,652/111,299.76 = 45,324/x
  3. Step 3: Cross multiply
    80,652x = 111,299.76 × 45,324
  4. Step 4: Simplify right side
    80,652x = 5,044,550,322.24
  5. Step 5: Solve for x
    x = 5,044,550,322.24/80,652
  6. Step 6: Final answer
    x = 62,547.12

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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.