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Finding the Fourth Proportional to 92,930.56, 128,234.92 and 52,636.28

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Solution

The fourth proportional to 92,930.56, 128,234.92 and 52,636.28 is: 72,632.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,930.56 : 128,234.92 = 52,636.28 : x
  2. Step 2: Convert to fraction form
    92,930.56/128,234.92 = 52,636.28/x
  3. Step 3: Cross multiply
    92,930.56x = 128,234.92 × 52,636.28
  4. Step 4: Simplify right side
    92,930.56x = 6,749,809,154.90
  5. Step 5: Solve for x
    x = 6,749,809,154.90/92,930.56
  6. Step 6: Final answer
    x = 72,632.83

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1.5x scale

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.