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Finding the Fourth Proportional to 404,319.58, 606,415.08 and 134,425.28

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Solution

The fourth proportional to 404,319.58, 606,415.08 and 134,425.28 is: 201,616.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,319.58 : 606,415.08 = 134,425.28 : x
  2. Step 2: Convert to fraction form
    404,319.58/606,415.08 = 134,425.28/x
  3. Step 3: Cross multiply
    404,319.58x = 606,415.08 × 134,425.28
  4. Step 4: Simplify right side
    404,319.58x = 81,517,518,441.26
  5. Step 5: Solve for x
    x = 81,517,518,441.26/404,319.58
  6. Step 6: Final answer
    x = 201,616.55

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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.