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Finding the Fourth Proportional to 96,754.86, 145,188.36 and 40,590

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Solution

The fourth proportional to 96,754.86, 145,188.36 and 40,590 is: 60,908.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,754.86 : 145,188.36 = 40,590 : x
  2. Step 2: Convert to fraction form
    96,754.86/145,188.36 = 40,590/x
  3. Step 3: Cross multiply
    96,754.86x = 145,188.36 × 40,590
  4. Step 4: Simplify right side
    96,754.86x = 5,893,195,532.40
  5. Step 5: Solve for x
    x = 5,893,195,532.40/96,754.86
  6. Step 6: Final answer
    x = 60,908.52

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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.