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Finding the Fourth Proportional to 374,551.85, 561,883.70 and 137,876.54

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Solution

The fourth proportional to 374,551.85, 561,883.70 and 137,876.54 is: 206,835.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,551.85 : 561,883.70 = 137,876.54 : x
  2. Step 2: Convert to fraction form
    374,551.85/561,883.70 = 137,876.54/x
  3. Step 3: Cross multiply
    374,551.85x = 561,883.70 × 137,876.54
  4. Step 4: Simplify right side
    374,551.85x = 77,470,577,973.67
  5. Step 5: Solve for x
    x = 77,470,577,973.67/374,551.85
  6. Step 6: Final answer
    x = 206,835.39

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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.