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Finding the Fourth Proportional to 352,508.45, 528,740.81 and 112,616.42

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Solution

The fourth proportional to 352,508.45, 528,740.81 and 112,616.42 is: 168,917.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,508.45 : 528,740.81 = 112,616.42 : x
  2. Step 2: Convert to fraction form
    352,508.45/528,740.81 = 112,616.42/x
  3. Step 3: Cross multiply
    352,508.45x = 528,740.81 × 112,616.42
  4. Step 4: Simplify right side
    352,508.45x = 59,544,896,567.02
  5. Step 5: Solve for x
    x = 59,544,896,567.02/352,508.45
  6. Step 6: Final answer
    x = 168,917.64

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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.