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Finding the Fourth Proportional to 374,221.84, 560,954.44 and 161,128.72

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Solution

The fourth proportional to 374,221.84, 560,954.44 and 161,128.72 is: 241,530.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,221.84 : 560,954.44 = 161,128.72 : x
  2. Step 2: Convert to fraction form
    374,221.84/560,954.44 = 161,128.72/x
  3. Step 3: Cross multiply
    374,221.84x = 560,954.44 × 161,128.72
  4. Step 4: Simplify right side
    374,221.84x = 90,385,870,895.52
  5. Step 5: Solve for x
    x = 90,385,870,895.52/374,221.84
  6. Step 6: Final answer
    x = 241,530.19

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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.