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Finding the Fourth Proportional to 230,963.80, 346,445.70 and 141,928.60

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Solution

The fourth proportional to 230,963.80, 346,445.70 and 141,928.60 is: 212,892.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,963.80 : 346,445.70 = 141,928.60 : x
  2. Step 2: Convert to fraction form
    230,963.80/346,445.70 = 141,928.60/x
  3. Step 3: Cross multiply
    230,963.80x = 346,445.70 × 141,928.60
  4. Step 4: Simplify right side
    230,963.80x = 49,170,553,177.02
  5. Step 5: Solve for x
    x = 49,170,553,177.02/230,963.80
  6. Step 6: Final answer
    x = 212,892.90

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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.