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Finding the Fourth Proportional to 96,639.63, 144,770.81 and 66,582.96

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Solution

The fourth proportional to 96,639.63, 144,770.81 and 66,582.96 is: 99,744.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,639.63 : 144,770.81 = 66,582.96 : x
  2. Step 2: Convert to fraction form
    96,639.63/144,770.81 = 66,582.96/x
  3. Step 3: Cross multiply
    96,639.63x = 144,770.81 × 66,582.96
  4. Step 4: Simplify right side
    96,639.63x = 9,639,268,718.48
  5. Step 5: Solve for x
    x = 9,639,268,718.48/96,639.63
  6. Step 6: Final answer
    x = 99,744.47

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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.