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Finding the Fourth Proportional to 422,566.16, 633,682.29 and 134,274.12

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Solution

The fourth proportional to 422,566.16, 633,682.29 and 134,274.12 is: 201,358.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,566.16 : 633,682.29 = 134,274.12 : x
  2. Step 2: Convert to fraction form
    422,566.16/633,682.29 = 134,274.12/x
  3. Step 3: Cross multiply
    422,566.16x = 633,682.29 × 134,274.12
  4. Step 4: Simplify right side
    422,566.16x = 85,087,130,600.81
  5. Step 5: Solve for x
    x = 85,087,130,600.81/422,566.16
  6. Step 6: Final answer
    x = 201,358.13

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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.