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Finding the Fourth Proportional to 94,150.95, 129,928.21 and 51,712.21

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Solution

The fourth proportional to 94,150.95, 129,928.21 and 51,712.21 is: 71,362.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,150.95 : 129,928.21 = 51,712.21 : x
  2. Step 2: Convert to fraction form
    94,150.95/129,928.21 = 51,712.21/x
  3. Step 3: Cross multiply
    94,150.95x = 129,928.21 × 51,712.21
  4. Step 4: Simplify right side
    94,150.95x = 6,718,874,880.44
  5. Step 5: Solve for x
    x = 6,718,874,880.44/94,150.95
  6. Step 6: Final answer
    x = 71,362.79

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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.