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Finding the Fourth Proportional to 92,923.64, 128,234.94 and 54,684.68

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Solution

The fourth proportional to 92,923.64, 128,234.94 and 54,684.68 is: 75,465.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,923.64 : 128,234.94 = 54,684.68 : x
  2. Step 2: Convert to fraction form
    92,923.64/128,234.94 = 54,684.68/x
  3. Step 3: Cross multiply
    92,923.64x = 128,234.94 × 54,684.68
  4. Step 4: Simplify right side
    92,923.64x = 7,012,486,658.72
  5. Step 5: Solve for x
    x = 7,012,486,658.72/92,923.64
  6. Step 6: Final answer
    x = 75,465.04

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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.