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Finding the Fourth Proportional to 92,341.79, 138,411.16 and 36,171.43

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Solution

The fourth proportional to 92,341.79, 138,411.16 and 36,171.43 is: 54,217.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,341.79 : 138,411.16 = 36,171.43 : x
  2. Step 2: Convert to fraction form
    92,341.79/138,411.16 = 36,171.43/x
  3. Step 3: Cross multiply
    92,341.79x = 138,411.16 × 36,171.43
  4. Step 4: Simplify right side
    92,341.79x = 5,006,529,585.16
  5. Step 5: Solve for x
    x = 5,006,529,585.16/92,341.79
  6. Step 6: Final answer
    x = 54,217.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.