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Finding the Fourth Proportional to 352,140.86, 528,020.14 and 159,909.74

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Solution

The fourth proportional to 352,140.86, 528,020.14 and 159,909.74 is: 239,777.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,140.86 : 528,020.14 = 159,909.74 : x
  2. Step 2: Convert to fraction form
    352,140.86/528,020.14 = 159,909.74/x
  3. Step 3: Cross multiply
    352,140.86x = 528,020.14 × 159,909.74
  4. Step 4: Simplify right side
    352,140.86x = 84,435,563,302.16
  5. Step 5: Solve for x
    x = 84,435,563,302.16/352,140.86
  6. Step 6: Final answer
    x = 239,777.81

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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.