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Finding the Fourth Proportional to 92,940.30, 128,253.42 and 52,653.24

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Solution

The fourth proportional to 92,940.30, 128,253.42 and 52,653.24 is: 72,659.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,940.30 : 128,253.42 = 52,653.24 : x
  2. Step 2: Convert to fraction form
    92,940.30/128,253.42 = 52,653.24/x
  3. Step 3: Cross multiply
    92,940.30x = 128,253.42 × 52,653.24
  4. Step 4: Simplify right side
    92,940.30x = 6,752,958,104.08
  5. Step 5: Solve for x
    x = 6,752,958,104.08/92,940.30
  6. Step 6: Final answer
    x = 72,659.10

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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.