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Finding the Fourth Proportional to 187,674.54, 258,990.93 and 102,793.02

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Solution

The fourth proportional to 187,674.54, 258,990.93 and 102,793.02 is: 141,854.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,674.54 : 258,990.93 = 102,793.02 : x
  2. Step 2: Convert to fraction form
    187,674.54/258,990.93 = 102,793.02/x
  3. Step 3: Cross multiply
    187,674.54x = 258,990.93 × 102,793.02
  4. Step 4: Simplify right side
    187,674.54x = 26,622,459,847.31
  5. Step 5: Solve for x
    x = 26,622,459,847.31/187,674.54
  6. Step 6: Final answer
    x = 141,854.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.