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Finding the Fourth Proportional to 92,961.61, 128,286.64 and 52,683.04

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Solution

The fourth proportional to 92,961.61, 128,286.64 and 52,683.04 is: 72,702.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,961.61 : 128,286.64 = 52,683.04 : x
  2. Step 2: Convert to fraction form
    92,961.61/128,286.64 = 52,683.04/x
  3. Step 3: Cross multiply
    92,961.61x = 128,286.64 × 52,683.04
  4. Step 4: Simplify right side
    92,961.61x = 6,758,530,186.59
  5. Step 5: Solve for x
    x = 6,758,530,186.59/92,961.61
  6. Step 6: Final answer
    x = 72,702.38

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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.