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Finding the Fourth Proportional to 352,114.39, 528,162.34 and 99,412.35

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Solution

The fourth proportional to 352,114.39, 528,162.34 and 99,412.35 is: 149,115.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,114.39 : 528,162.34 = 99,412.35 : x
  2. Step 2: Convert to fraction form
    352,114.39/528,162.34 = 99,412.35/x
  3. Step 3: Cross multiply
    352,114.39x = 528,162.34 × 99,412.35
  4. Step 4: Simplify right side
    352,114.39x = 52,505,859,400.90
  5. Step 5: Solve for x
    x = 52,505,859,400.90/352,114.39
  6. Step 6: Final answer
    x = 149,115.91

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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.