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Finding the Fourth Proportional to 119,350.76, 164,704.48 and 65,639.12

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Solution

The fourth proportional to 119,350.76, 164,704.48 and 65,639.12 is: 90,582.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,350.76 : 164,704.48 = 65,639.12 : x
  2. Step 2: Convert to fraction form
    119,350.76/164,704.48 = 65,639.12/x
  3. Step 3: Cross multiply
    119,350.76x = 164,704.48 × 65,639.12
  4. Step 4: Simplify right side
    119,350.76x = 10,811,057,127.26
  5. Step 5: Solve for x
    x = 10,811,057,127.26/119,350.76
  6. Step 6: Final answer
    x = 90,582.22

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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.