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Finding the Fourth Proportional to 382,639.96, 573,872.28 and 112,698.28

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Solution

The fourth proportional to 382,639.96, 573,872.28 and 112,698.28 is: 169,021.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,639.96 : 573,872.28 = 112,698.28 : x
  2. Step 2: Convert to fraction form
    382,639.96/573,872.28 = 112,698.28/x
  3. Step 3: Cross multiply
    382,639.96x = 573,872.28 × 112,698.28
  4. Step 4: Simplify right side
    382,639.96x = 64,674,418,895.68
  5. Step 5: Solve for x
    x = 64,674,418,895.68/382,639.96
  6. Step 6: Final answer
    x = 169,021.60

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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.