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Finding the Fourth Proportional to 98,914.38, 148,468.77 and 72,544.02

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Solution

The fourth proportional to 98,914.38, 148,468.77 and 72,544.02 is: 108,887.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,914.38 : 148,468.77 = 72,544.02 : x
  2. Step 2: Convert to fraction form
    98,914.38/148,468.77 = 72,544.02/x
  3. Step 3: Cross multiply
    98,914.38x = 148,468.77 × 72,544.02
  4. Step 4: Simplify right side
    98,914.38x = 10,770,521,420.26
  5. Step 5: Solve for x
    x = 10,770,521,420.26/98,914.38
  6. Step 6: Final answer
    x = 108,887.32

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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.