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Finding the Fourth Proportional to 144,064.08, 216,255.24 and 84,942.48

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Solution

The fourth proportional to 144,064.08, 216,255.24 and 84,942.48 is: 127,507.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,064.08 : 216,255.24 = 84,942.48 : x
  2. Step 2: Convert to fraction form
    144,064.08/216,255.24 = 84,942.48/x
  3. Step 3: Cross multiply
    144,064.08x = 216,255.24 × 84,942.48
  4. Step 4: Simplify right side
    144,064.08x = 18,369,256,398.60
  5. Step 5: Solve for x
    x = 18,369,256,398.60/144,064.08
  6. Step 6: Final answer
    x = 127,507.54

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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.