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Finding the Fourth Proportional to 228,356.20, 342,534.30 and 70,600.60

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Solution

The fourth proportional to 228,356.20, 342,534.30 and 70,600.60 is: 105,900.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,356.20 : 342,534.30 = 70,600.60 : x
  2. Step 2: Convert to fraction form
    228,356.20/342,534.30 = 70,600.60/x
  3. Step 3: Cross multiply
    228,356.20x = 342,534.30 × 70,600.60
  4. Step 4: Simplify right side
    228,356.20x = 24,183,127,100.58
  5. Step 5: Solve for x
    x = 24,183,127,100.58/228,356.20
  6. Step 6: Final answer
    x = 105,900.90

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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.