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Finding the Fourth Proportional to 267,107.40, 400,818.48 and 98,746.68

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Solution

The fourth proportional to 267,107.40, 400,818.48 and 98,746.68 is: 148,178.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,107.40 : 400,818.48 = 98,746.68 : x
  2. Step 2: Convert to fraction form
    267,107.40/400,818.48 = 98,746.68/x
  3. Step 3: Cross multiply
    267,107.40x = 400,818.48 × 98,746.68
  4. Step 4: Simplify right side
    267,107.40x = 39,579,494,182.65
  5. Step 5: Solve for x
    x = 39,579,494,182.65/267,107.40
  6. Step 6: Final answer
    x = 148,178.20

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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.