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Finding the Fourth Proportional to 73,969.74, 110,859.30 and 64,443.47

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Solution

The fourth proportional to 73,969.74, 110,859.30 and 64,443.47 is: 96,582.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,969.74 : 110,859.30 = 64,443.47 : x
  2. Step 2: Convert to fraction form
    73,969.74/110,859.30 = 64,443.47/x
  3. Step 3: Cross multiply
    73,969.74x = 110,859.30 × 64,443.47
  4. Step 4: Simplify right side
    73,969.74x = 7,144,157,419.47
  5. Step 5: Solve for x
    x = 7,144,157,419.47/73,969.74
  6. Step 6: Final answer
    x = 96,582.16

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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.