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Finding the Fourth Proportional to 374,015.20, 560,689.08 and 163,486.48

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Solution

The fourth proportional to 374,015.20, 560,689.08 and 163,486.48 is: 245,083.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,015.20 : 560,689.08 = 163,486.48 : x
  2. Step 2: Convert to fraction form
    374,015.20/560,689.08 = 163,486.48/x
  3. Step 3: Cross multiply
    374,015.20x = 560,689.08 × 163,486.48
  4. Step 4: Simplify right side
    374,015.20x = 91,665,084,063.64
  5. Step 5: Solve for x
    x = 91,665,084,063.64/374,015.20
  6. Step 6: Final answer
    x = 245,083.85

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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.