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Finding the Fourth Proportional to 401,066.10, 601,599.15 and 134,738.10

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Solution

The fourth proportional to 401,066.10, 601,599.15 and 134,738.10 is: 202,107.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,066.10 : 601,599.15 = 134,738.10 : x
  2. Step 2: Convert to fraction form
    401,066.10/601,599.15 = 134,738.10/x
  3. Step 3: Cross multiply
    401,066.10x = 601,599.15 × 134,738.10
  4. Step 4: Simplify right side
    401,066.10x = 81,058,326,432.62
  5. Step 5: Solve for x
    x = 81,058,326,432.62/401,066.10
  6. Step 6: Final answer
    x = 202,107.15

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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.