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Finding the Fourth Proportional to 73,285.86, 109,854.93 and 28,895.46

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Solution

The fourth proportional to 73,285.86, 109,854.93 and 28,895.46 is: 43,314.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,285.86 : 109,854.93 = 28,895.46 : x
  2. Step 2: Convert to fraction form
    73,285.86/109,854.93 = 28,895.46/x
  3. Step 3: Cross multiply
    73,285.86x = 109,854.93 × 28,895.46
  4. Step 4: Simplify right side
    73,285.86x = 3,174,308,735.62
  5. Step 5: Solve for x
    x = 3,174,308,735.62/73,285.86
  6. Step 6: Final answer
    x = 43,314.07

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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.