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Finding the Fourth Proportional to 105,793.39, 145,989.08 and 58,042.98

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Solution

The fourth proportional to 105,793.39, 145,989.08 and 58,042.98 is: 80,096.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,793.39 : 145,989.08 = 58,042.98 : x
  2. Step 2: Convert to fraction form
    105,793.39/145,989.08 = 58,042.98/x
  3. Step 3: Cross multiply
    105,793.39x = 145,989.08 × 58,042.98
  4. Step 4: Simplify right side
    105,793.39x = 8,473,641,504.60
  5. Step 5: Solve for x
    x = 8,473,641,504.60/105,793.39
  6. Step 6: Final answer
    x = 80,096.13

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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.