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Finding the Fourth Proportional to 150,726.80, 226,090.20 and 142,125.20

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Solution

The fourth proportional to 150,726.80, 226,090.20 and 142,125.20 is: 213,187.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,726.80 : 226,090.20 = 142,125.20 : x
  2. Step 2: Convert to fraction form
    150,726.80/226,090.20 = 142,125.20/x
  3. Step 3: Cross multiply
    150,726.80x = 226,090.20 × 142,125.20
  4. Step 4: Simplify right side
    150,726.80x = 32,133,114,893.04
  5. Step 5: Solve for x
    x = 32,133,114,893.04/150,726.80
  6. Step 6: Final answer
    x = 213,187.80

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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.