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Finding the Fourth Proportional to 124,697.52, 187,887.84 and 102,997.08

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Solution

The fourth proportional to 124,697.52, 187,887.84 and 102,997.08 is: 155,190.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,697.52 : 187,887.84 = 102,997.08 : x
  2. Step 2: Convert to fraction form
    124,697.52/187,887.84 = 102,997.08/x
  3. Step 3: Cross multiply
    124,697.52x = 187,887.84 × 102,997.08
  4. Step 4: Simplify right side
    124,697.52x = 19,351,898,887.51
  5. Step 5: Solve for x
    x = 19,351,898,887.51/124,697.52
  6. Step 6: Final answer
    x = 155,190.73

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.