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Finding the Fourth Proportional to 365,702.03, 548,355.81 and 165,913.40

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Solution

The fourth proportional to 365,702.03, 548,355.81 and 165,913.40 is: 248,780.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,702.03 : 548,355.81 = 165,913.40 : x
  2. Step 2: Convert to fraction form
    365,702.03/548,355.81 = 165,913.40/x
  3. Step 3: Cross multiply
    365,702.03x = 548,355.81 × 165,913.40
  4. Step 4: Simplify right side
    365,702.03x = 90,979,576,017.29
  5. Step 5: Solve for x
    x = 90,979,576,017.29/365,702.03
  6. Step 6: Final answer
    x = 248,780.62

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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.