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Finding the Fourth Proportional to 92,874.96, 128,168.97 and 52,587.66

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Solution

The fourth proportional to 92,874.96, 128,168.97 and 52,587.66 is: 72,571.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,874.96 : 128,168.97 = 52,587.66 : x
  2. Step 2: Convert to fraction form
    92,874.96/128,168.97 = 52,587.66/x
  3. Step 3: Cross multiply
    92,874.96x = 128,168.97 × 52,587.66
  4. Step 4: Simplify right side
    92,874.96x = 6,740,106,216.91
  5. Step 5: Solve for x
    x = 6,740,106,216.91/92,874.96
  6. Step 6: Final answer
    x = 72,571.83

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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.