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Finding the Fourth Proportional to 96,909.37, 133,746.02 and 53,893.15

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Solution

The fourth proportional to 96,909.37, 133,746.02 and 53,893.15 is: 74,378.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,909.37 : 133,746.02 = 53,893.15 : x
  2. Step 2: Convert to fraction form
    96,909.37/133,746.02 = 53,893.15/x
  3. Step 3: Cross multiply
    96,909.37x = 133,746.02 × 53,893.15
  4. Step 4: Simplify right side
    96,909.37x = 7,207,994,317.76
  5. Step 5: Solve for x
    x = 7,207,994,317.76/96,909.37
  6. Step 6: Final answer
    x = 74,378.71

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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.