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Finding the Fourth Proportional to 92,771.14, 128,042.63 and 52,484.98

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Solution

The fourth proportional to 92,771.14, 128,042.63 and 52,484.98 is: 72,439.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,771.14 : 128,042.63 = 52,484.98 : x
  2. Step 2: Convert to fraction form
    92,771.14/128,042.63 = 52,484.98/x
  3. Step 3: Cross multiply
    92,771.14x = 128,042.63 × 52,484.98
  4. Step 4: Simplify right side
    92,771.14x = 6,720,314,874.70
  5. Step 5: Solve for x
    x = 6,720,314,874.70/92,771.14
  6. Step 6: Final answer
    x = 72,439.71

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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.