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Finding the Fourth Proportional to 188,900.10, 283,090.95 and 153,908.10

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Solution

The fourth proportional to 188,900.10, 283,090.95 and 153,908.10 is: 230,650.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,900.10 : 283,090.95 = 153,908.10 : x
  2. Step 2: Convert to fraction form
    188,900.10/283,090.95 = 153,908.10/x
  3. Step 3: Cross multiply
    188,900.10x = 283,090.95 × 153,908.10
  4. Step 4: Simplify right side
    188,900.10x = 43,569,990,241.70
  5. Step 5: Solve for x
    x = 43,569,990,241.70/188,900.10
  6. Step 6: Final answer
    x = 230,650.96

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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.