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Finding the Fourth Proportional to 151,365.40, 227,048.10 and 127,745.80

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Solution

The fourth proportional to 151,365.40, 227,048.10 and 127,745.80 is: 191,618.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,365.40 : 227,048.10 = 127,745.80 : x
  2. Step 2: Convert to fraction form
    151,365.40/227,048.10 = 127,745.80/x
  3. Step 3: Cross multiply
    151,365.40x = 227,048.10 × 127,745.80
  4. Step 4: Simplify right side
    151,365.40x = 29,004,441,172.98
  5. Step 5: Solve for x
    x = 29,004,441,172.98/151,365.40
  6. Step 6: Final answer
    x = 191,618.70

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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.