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Finding the Fourth Proportional to 92,892.87, 128,192.41 and 54,653.86

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Solution

The fourth proportional to 92,892.87, 128,192.41 and 54,653.86 is: 75,422.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,892.87 : 128,192.41 = 54,653.86 : x
  2. Step 2: Convert to fraction form
    92,892.87/128,192.41 = 54,653.86/x
  3. Step 3: Cross multiply
    92,892.87x = 128,192.41 × 54,653.86
  4. Step 4: Simplify right side
    92,892.87x = 7,006,209,114.97
  5. Step 5: Solve for x
    x = 7,006,209,114.97/92,892.87
  6. Step 6: Final answer
    x = 75,422.47

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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.