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Finding the Fourth Proportional to 109,703.86, 151,391.33 and 59,402.86

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Solution

The fourth proportional to 109,703.86, 151,391.33 and 59,402.86 is: 81,975.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,703.86 : 151,391.33 = 59,402.86 : x
  2. Step 2: Convert to fraction form
    109,703.86/151,391.33 = 59,402.86/x
  3. Step 3: Cross multiply
    109,703.86x = 151,391.33 × 59,402.86
  4. Step 4: Simplify right side
    109,703.86x = 8,993,077,305.71
  5. Step 5: Solve for x
    x = 8,993,077,305.71/109,703.86
  6. Step 6: Final answer
    x = 81,975.94

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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.