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Finding the Fourth Proportional to 70,223.40, 105,335.10 and 60,600.60

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Solution

The fourth proportional to 70,223.40, 105,335.10 and 60,600.60 is: 90,900.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,223.40 : 105,335.10 = 60,600.60 : x
  2. Step 2: Convert to fraction form
    70,223.40/105,335.10 = 60,600.60/x
  3. Step 3: Cross multiply
    70,223.40x = 105,335.10 × 60,600.60
  4. Step 4: Simplify right side
    70,223.40x = 6,383,370,261.06
  5. Step 5: Solve for x
    x = 6,383,370,261.06/70,223.40
  6. Step 6: Final answer
    x = 90,900.90

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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.