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Finding the Fourth Proportional to 675,159.20, 1,012,852.20 and 201,892.40

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Solution

The fourth proportional to 675,159.20, 1,012,852.20 and 201,892.40 is: 302,872.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,159.20 : 1,012,852.20 = 201,892.40 : x
  2. Step 2: Convert to fraction form
    675,159.20/1,012,852.20 = 201,892.40/x
  3. Step 3: Cross multiply
    675,159.20x = 1,012,852.20 × 201,892.40
  4. Step 4: Simplify right side
    675,159.20x = 204,487,161,503.28
  5. Step 5: Solve for x
    x = 204,487,161,503.28/675,159.20
  6. Step 6: Final answer
    x = 302,872.51

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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.