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Finding the Fourth Proportional to 96,378.64, 133,003.20 and 53,941.12

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Solution

The fourth proportional to 96,378.64, 133,003.20 and 53,941.12 is: 74,439.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,378.64 : 133,003.20 = 53,941.12 : x
  2. Step 2: Convert to fraction form
    96,378.64/133,003.20 = 53,941.12/x
  3. Step 3: Cross multiply
    96,378.64x = 133,003.20 × 53,941.12
  4. Step 4: Simplify right side
    96,378.64x = 7,174,341,571.58
  5. Step 5: Solve for x
    x = 7,174,341,571.58/96,378.64
  6. Step 6: Final answer
    x = 74,439.12

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1.5x scale

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.