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Finding the Fourth Proportional to 374,559.18, 561,894.72 and 137,883.86

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Solution

The fourth proportional to 374,559.18, 561,894.72 and 137,883.86 is: 206,846.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,559.18 : 561,894.72 = 137,883.86 : x
  2. Step 2: Convert to fraction form
    374,559.18/561,894.72 = 137,883.86/x
  3. Step 3: Cross multiply
    374,559.18x = 561,894.72 × 137,883.86
  4. Step 4: Simplify right side
    374,559.18x = 77,476,212,907.22
  5. Step 5: Solve for x
    x = 77,476,212,907.22/374,559.18
  6. Step 6: Final answer
    x = 206,846.39

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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.