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Finding the Fourth Proportional to 96,658, 133,387.76 and 53,643.99

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Solution

The fourth proportional to 96,658, 133,387.76 and 53,643.99 is: 74,028.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,658 : 133,387.76 = 53,643.99 : x
  2. Step 2: Convert to fraction form
    96,658/133,387.76 = 53,643.99/x
  3. Step 3: Cross multiply
    96,658x = 133,387.76 × 53,643.99
  4. Step 4: Simplify right side
    96,658x = 7,155,451,663.56
  5. Step 5: Solve for x
    x = 7,155,451,663.56/96,658
  6. Step 6: Final answer
    x = 74,028.55

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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.