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Finding the Fourth Proportional to 73,232.40, 109,848.60 and 72,454.80

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Solution

The fourth proportional to 73,232.40, 109,848.60 and 72,454.80 is: 108,682.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,232.40 : 109,848.60 = 72,454.80 : x
  2. Step 2: Convert to fraction form
    73,232.40/109,848.60 = 72,454.80/x
  3. Step 3: Cross multiply
    73,232.40x = 109,848.60 × 72,454.80
  4. Step 4: Simplify right side
    73,232.40x = 7,959,058,343.28
  5. Step 5: Solve for x
    x = 7,959,058,343.28/73,232.40
  6. Step 6: Final answer
    x = 108,682.20

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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.