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Finding the Fourth Proportional to 201,673.20, 302,574.60 and 135,188.40

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Solution

The fourth proportional to 201,673.20, 302,574.60 and 135,188.40 is: 202,826.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,673.20 : 302,574.60 = 135,188.40 : x
  2. Step 2: Convert to fraction form
    201,673.20/302,574.60 = 135,188.40/x
  3. Step 3: Cross multiply
    201,673.20x = 302,574.60 × 135,188.40
  4. Step 4: Simplify right side
    201,673.20x = 40,904,576,054.64
  5. Step 5: Solve for x
    x = 40,904,576,054.64/201,673.20
  6. Step 6: Final answer
    x = 202,826.04

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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.