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Finding the Fourth Proportional to 433,543.20, 650,363.40 and 134,021.40

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Solution

The fourth proportional to 433,543.20, 650,363.40 and 134,021.40 is: 201,047.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,543.20 : 650,363.40 = 134,021.40 : x
  2. Step 2: Convert to fraction form
    433,543.20/650,363.40 = 134,021.40/x
  3. Step 3: Cross multiply
    433,543.20x = 650,363.40 × 134,021.40
  4. Step 4: Simplify right side
    433,543.20x = 87,162,613,376.76
  5. Step 5: Solve for x
    x = 87,162,613,376.76/433,543.20
  6. Step 6: Final answer
    x = 201,047.12

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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.