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Finding the Fourth Proportional to 92,767.92, 128,019.74 and 52,480.85

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Solution

The fourth proportional to 92,767.92, 128,019.74 and 52,480.85 is: 72,423.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,767.92 : 128,019.74 = 52,480.85 : x
  2. Step 2: Convert to fraction form
    92,767.92/128,019.74 = 52,480.85/x
  3. Step 3: Cross multiply
    92,767.92x = 128,019.74 × 52,480.85
  4. Step 4: Simplify right side
    92,767.92x = 6,718,584,164.68
  5. Step 5: Solve for x
    x = 6,718,584,164.68/92,767.92
  6. Step 6: Final answer
    x = 72,423.58

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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.