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Finding the Fourth Proportional to 277,245.56, 382,590.26 and 156,385.08

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Solution

The fourth proportional to 277,245.56, 382,590.26 and 156,385.08 is: 215,806.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,245.56 : 382,590.26 = 156,385.08 : x
  2. Step 2: Convert to fraction form
    277,245.56/382,590.26 = 156,385.08/x
  3. Step 3: Cross multiply
    277,245.56x = 382,590.26 × 156,385.08
  4. Step 4: Simplify right side
    277,245.56x = 59,831,408,417.32
  5. Step 5: Solve for x
    x = 59,831,408,417.32/277,245.56
  6. Step 6: Final answer
    x = 215,806.55

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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.