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Finding the Fourth Proportional to 96,406.60, 133,039.65 and 53,966.65

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Solution

The fourth proportional to 96,406.60, 133,039.65 and 53,966.65 is: 74,473.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,406.60 : 133,039.65 = 53,966.65 : x
  2. Step 2: Convert to fraction form
    96,406.60/133,039.65 = 53,966.65/x
  3. Step 3: Cross multiply
    96,406.60x = 133,039.65 × 53,966.65
  4. Step 4: Simplify right side
    96,406.60x = 7,179,704,227.67
  5. Step 5: Solve for x
    x = 7,179,704,227.67/96,406.60
  6. Step 6: Final answer
    x = 74,473.16

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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.