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Finding the Fourth Proportional to 202,847.80, 304,530.90 and 108,153.40

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Solution

The fourth proportional to 202,847.80, 304,530.90 and 108,153.40 is: 162,368.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,847.80 : 304,530.90 = 108,153.40 : x
  2. Step 2: Convert to fraction form
    202,847.80/304,530.90 = 108,153.40/x
  3. Step 3: Cross multiply
    202,847.80x = 304,530.90 × 108,153.40
  4. Step 4: Simplify right side
    202,847.80x = 32,936,052,240.06
  5. Step 5: Solve for x
    x = 32,936,052,240.06/202,847.80
  6. Step 6: Final answer
    x = 162,368.30

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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.