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Finding the Fourth Proportional to 92,819.92, 128,061 and 52,529.68

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Solution

The fourth proportional to 92,819.92, 128,061 and 52,529.68 is: 72,473.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,819.92 : 128,061 = 52,529.68 : x
  2. Step 2: Convert to fraction form
    92,819.92/128,061 = 52,529.68/x
  3. Step 3: Cross multiply
    92,819.92x = 128,061 × 52,529.68
  4. Step 4: Simplify right side
    92,819.92x = 6,727,003,350.48
  5. Step 5: Solve for x
    x = 6,727,003,350.48/92,819.92
  6. Step 6: Final answer
    x = 72,473.70

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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.