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Finding the Fourth Proportional to 150,572.96, 225,519.60 and 86,448.80

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Solution

The fourth proportional to 150,572.96, 225,519.60 and 86,448.80 is: 129,478.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,572.96 : 225,519.60 = 86,448.80 : x
  2. Step 2: Convert to fraction form
    150,572.96/225,519.60 = 86,448.80/x
  3. Step 3: Cross multiply
    150,572.96x = 225,519.60 × 86,448.80
  4. Step 4: Simplify right side
    150,572.96x = 19,495,898,796.48
  5. Step 5: Solve for x
    x = 19,495,898,796.48/150,572.96
  6. Step 6: Final answer
    x = 129,478.09

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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.