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Finding the Fourth Proportional to 369,063.80, 553,247.40 and 200,335.40

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Solution

The fourth proportional to 369,063.80, 553,247.40 and 200,335.40 is: 300,314.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,063.80 : 553,247.40 = 200,335.40 : x
  2. Step 2: Convert to fraction form
    369,063.80/553,247.40 = 200,335.40/x
  3. Step 3: Cross multiply
    369,063.80x = 553,247.40 × 200,335.40
  4. Step 4: Simplify right side
    369,063.80x = 110,835,039,177.96
  5. Step 5: Solve for x
    x = 110,835,039,177.96/369,063.80
  6. Step 6: Final answer
    x = 300,314.04

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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.