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Finding the Fourth Proportional to 180,418.72, 248,794.32 and 108,784.48

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Solution

The fourth proportional to 180,418.72, 248,794.32 and 108,784.48 is: 150,011.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,418.72 : 248,794.32 = 108,784.48 : x
  2. Step 2: Convert to fraction form
    180,418.72/248,794.32 = 108,784.48/x
  3. Step 3: Cross multiply
    180,418.72x = 248,794.32 × 108,784.48
  4. Step 4: Simplify right side
    180,418.72x = 27,064,960,728.15
  5. Step 5: Solve for x
    x = 27,064,960,728.15/180,418.72
  6. Step 6: Final answer
    x = 150,011.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.