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Finding the Fourth Proportional to 352,454.05, 528,701.45 and 99,713.37

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Solution

The fourth proportional to 352,454.05, 528,701.45 and 99,713.37 is: 149,575.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,454.05 : 528,701.45 = 99,713.37 : x
  2. Step 2: Convert to fraction form
    352,454.05/528,701.45 = 99,713.37/x
  3. Step 3: Cross multiply
    352,454.05x = 528,701.45 × 99,713.37
  4. Step 4: Simplify right side
    352,454.05x = 52,718,600,161.31
  5. Step 5: Solve for x
    x = 52,718,600,161.31/352,454.05
  6. Step 6: Final answer
    x = 149,575.81

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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.