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Finding the Fourth Proportional to 228,611.76, 342,792.36 and 70,796.40

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Solution

The fourth proportional to 228,611.76, 342,792.36 and 70,796.40 is: 106,155.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,611.76 : 342,792.36 = 70,796.40 : x
  2. Step 2: Convert to fraction form
    228,611.76/342,792.36 = 70,796.40/x
  3. Step 3: Cross multiply
    228,611.76x = 342,792.36 × 70,796.40
  4. Step 4: Simplify right side
    228,611.76x = 24,268,465,035.50
  5. Step 5: Solve for x
    x = 24,268,465,035.50/228,611.76
  6. Step 6: Final answer
    x = 106,155.80

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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.