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Finding the Fourth Proportional to 92,873.72, 128,166.90 and 50,432.96

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Solution

The fourth proportional to 92,873.72, 128,166.90 and 50,432.96 is: 69,598.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,873.72 : 128,166.90 = 50,432.96 : x
  2. Step 2: Convert to fraction form
    92,873.72/128,166.90 = 50,432.96/x
  3. Step 3: Cross multiply
    92,873.72x = 128,166.90 × 50,432.96
  4. Step 4: Simplify right side
    92,873.72x = 6,463,836,141.02
  5. Step 5: Solve for x
    x = 6,463,836,141.02/92,873.72
  6. Step 6: Final answer
    x = 69,598.12

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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.