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Finding the Fourth Proportional to 189,601.60, 284,056.80 and 154,350.40

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Solution

The fourth proportional to 189,601.60, 284,056.80 and 154,350.40 is: 231,244.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,601.60 : 284,056.80 = 154,350.40 : x
  2. Step 2: Convert to fraction form
    189,601.60/284,056.80 = 154,350.40/x
  3. Step 3: Cross multiply
    189,601.60x = 284,056.80 × 154,350.40
  4. Step 4: Simplify right side
    189,601.60x = 43,844,280,702.72
  5. Step 5: Solve for x
    x = 43,844,280,702.72/189,601.60
  6. Step 6: Final answer
    x = 231,244.25

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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.