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Finding the Fourth Proportional to 72,203.28, 108,304.92 and 47,573.52

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Solution

The fourth proportional to 72,203.28, 108,304.92 and 47,573.52 is: 71,360.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,203.28 : 108,304.92 = 47,573.52 : x
  2. Step 2: Convert to fraction form
    72,203.28/108,304.92 = 47,573.52/x
  3. Step 3: Cross multiply
    72,203.28x = 108,304.92 × 47,573.52
  4. Step 4: Simplify right side
    72,203.28x = 5,152,446,277.72
  5. Step 5: Solve for x
    x = 5,152,446,277.72/72,203.28
  6. Step 6: Final answer
    x = 71,360.28

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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.