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Finding the Fourth Proportional to 354,702.20, 532,206.90 and 167,617.40

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Solution

The fourth proportional to 354,702.20, 532,206.90 and 167,617.40 is: 251,498.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,702.20 : 532,206.90 = 167,617.40 : x
  2. Step 2: Convert to fraction form
    354,702.20/532,206.90 = 167,617.40/x
  3. Step 3: Cross multiply
    354,702.20x = 532,206.90 × 167,617.40
  4. Step 4: Simplify right side
    354,702.20x = 89,207,136,840.06
  5. Step 5: Solve for x
    x = 89,207,136,840.06/354,702.20
  6. Step 6: Final answer
    x = 251,498.68

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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.