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Finding the Fourth Proportional to 190,230.60, 285,000.30 and 154,979.40

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Solution

The fourth proportional to 190,230.60, 285,000.30 and 154,979.40 is: 232,187.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,230.60 : 285,000.30 = 154,979.40 : x
  2. Step 2: Convert to fraction form
    190,230.60/285,000.30 = 154,979.40/x
  3. Step 3: Cross multiply
    190,230.60x = 285,000.30 × 154,979.40
  4. Step 4: Simplify right side
    190,230.60x = 44,169,175,493.82
  5. Step 5: Solve for x
    x = 44,169,175,493.82/190,230.60
  6. Step 6: Final answer
    x = 232,187.54

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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.