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Finding the Fourth Proportional to 151,405.70, 226,999.20 and 84,866.23

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Solution

The fourth proportional to 151,405.70, 226,999.20 and 84,866.23 is: 127,238.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,405.70 : 226,999.20 = 84,866.23 : x
  2. Step 2: Convert to fraction form
    151,405.70/226,999.20 = 84,866.23/x
  3. Step 3: Cross multiply
    151,405.70x = 226,999.20 × 84,866.23
  4. Step 4: Simplify right side
    151,405.70x = 19,264,566,317.02
  5. Step 5: Solve for x
    x = 19,264,566,317.02/151,405.70
  6. Step 6: Final answer
    x = 127,238.05

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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.