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Finding the Fourth Proportional to 92,876.64, 128,188.44 and 52,590.48

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Solution

The fourth proportional to 92,876.64, 128,188.44 and 52,590.48 is: 72,585.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,876.64 : 128,188.44 = 52,590.48 : x
  2. Step 2: Convert to fraction form
    92,876.64/128,188.44 = 52,590.48/x
  3. Step 3: Cross multiply
    92,876.64x = 128,188.44 × 52,590.48
  4. Step 4: Simplify right side
    92,876.64x = 6,741,491,590.05
  5. Step 5: Solve for x
    x = 6,741,491,590.05/92,876.64
  6. Step 6: Final answer
    x = 72,585.44

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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.