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Finding the Fourth Proportional to 96,963.70, 145,445.56 and 30,409.64

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Solution

The fourth proportional to 96,963.70, 145,445.56 and 30,409.64 is: 45,614.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,963.70 : 145,445.56 = 30,409.64 : x
  2. Step 2: Convert to fraction form
    96,963.70/145,445.56 = 30,409.64/x
  3. Step 3: Cross multiply
    96,963.70x = 145,445.56 × 30,409.64
  4. Step 4: Simplify right side
    96,963.70x = 4,422,947,119.20
  5. Step 5: Solve for x
    x = 4,422,947,119.20/96,963.70
  6. Step 6: Final answer
    x = 45,614.46

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1.5x scale

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.