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Finding the Fourth Proportional to 92,892.96, 128,192.51 and 54,653.94

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Solution

The fourth proportional to 92,892.96, 128,192.51 and 54,653.94 is: 75,422.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,892.96 : 128,192.51 = 54,653.94 : x
  2. Step 2: Convert to fraction form
    92,892.96/128,192.51 = 54,653.94/x
  3. Step 3: Cross multiply
    92,892.96x = 128,192.51 × 54,653.94
  4. Step 4: Simplify right side
    92,892.96x = 7,006,225,886.62
  5. Step 5: Solve for x
    x = 7,006,225,886.62/92,892.96
  6. Step 6: Final answer
    x = 75,422.57

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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.