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Finding the Fourth Proportional to 352,254.21, 528,468.75 and 102,936.21

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Solution

The fourth proportional to 352,254.21, 528,468.75 and 102,936.21 is: 154,429.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,254.21 : 528,468.75 = 102,936.21 : x
  2. Step 2: Convert to fraction form
    352,254.21/528,468.75 = 102,936.21/x
  3. Step 3: Cross multiply
    352,254.21x = 528,468.75 × 102,936.21
  4. Step 4: Simplify right side
    352,254.21x = 54,398,570,228.44
  5. Step 5: Solve for x
    x = 54,398,570,228.44/352,254.21
  6. Step 6: Final answer
    x = 154,429.87

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1.5x scale

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.