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Finding the Fourth Proportional to 277,118.72, 382,391.33 and 156,252.80

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Solution

The fourth proportional to 277,118.72, 382,391.33 and 156,252.80 is: 215,610.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,118.72 : 382,391.33 = 156,252.80 : x
  2. Step 2: Convert to fraction form
    277,118.72/382,391.33 = 156,252.80/x
  3. Step 3: Cross multiply
    277,118.72x = 382,391.33 × 156,252.80
  4. Step 4: Simplify right side
    277,118.72x = 59,749,713,315.00
  5. Step 5: Solve for x
    x = 59,749,713,315.00/277,118.72
  6. Step 6: Final answer
    x = 215,610.53

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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.