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Finding the Fourth Proportional to 273,094.40, 409,900.80 and 168,118.40

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Solution

The fourth proportional to 273,094.40, 409,900.80 and 168,118.40 is: 252,337.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,094.40 : 409,900.80 = 168,118.40 : x
  2. Step 2: Convert to fraction form
    273,094.40/409,900.80 = 168,118.40/x
  3. Step 3: Cross multiply
    273,094.40x = 409,900.80 × 168,118.40
  4. Step 4: Simplify right side
    273,094.40x = 68,911,866,654.72
  5. Step 5: Solve for x
    x = 68,911,866,654.72/273,094.40
  6. Step 6: Final answer
    x = 252,337.16

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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.