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Finding the Fourth Proportional to 277,130.72, 415,660.23 and 87,610.16

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Solution

The fourth proportional to 277,130.72, 415,660.23 and 87,610.16 is: 131,403.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,130.72 : 415,660.23 = 87,610.16 : x
  2. Step 2: Convert to fraction form
    277,130.72/415,660.23 = 87,610.16/x
  3. Step 3: Cross multiply
    277,130.72x = 415,660.23 × 87,610.16
  4. Step 4: Simplify right side
    277,130.72x = 36,416,058,203.40
  5. Step 5: Solve for x
    x = 36,416,058,203.40/277,130.72
  6. Step 6: Final answer
    x = 131,403.90

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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.