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Finding the Fourth Proportional to 374,450.32, 561,897.44 and 137,958.96

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Solution

The fourth proportional to 374,450.32, 561,897.44 and 137,958.96 is: 207,020.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,450.32 : 561,897.44 = 137,958.96 : x
  2. Step 2: Convert to fraction form
    374,450.32/561,897.44 = 137,958.96/x
  3. Step 3: Cross multiply
    374,450.32x = 561,897.44 × 137,958.96
  4. Step 4: Simplify right side
    374,450.32x = 77,518,786,449.06
  5. Step 5: Solve for x
    x = 77,518,786,449.06/374,450.32
  6. Step 6: Final answer
    x = 207,020.22

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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.