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Finding the Fourth Proportional to 92,860.62, 128,150.28 and 54,622.95

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Solution

The fourth proportional to 92,860.62, 128,150.28 and 54,622.95 is: 75,381.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,860.62 : 128,150.28 = 54,622.95 : x
  2. Step 2: Convert to fraction form
    92,860.62/128,150.28 = 54,622.95/x
  3. Step 3: Cross multiply
    92,860.62x = 128,150.28 × 54,622.95
  4. Step 4: Simplify right side
    92,860.62x = 6,999,946,336.93
  5. Step 5: Solve for x
    x = 6,999,946,336.93/92,860.62
  6. Step 6: Final answer
    x = 75,381.21

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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.