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Finding the Fourth Proportional to 111,655.70, 167,389.41 and 48,428.23

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Solution

The fourth proportional to 111,655.70, 167,389.41 and 48,428.23 is: 72,601.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,655.70 : 167,389.41 = 48,428.23 : x
  2. Step 2: Convert to fraction form
    111,655.70/167,389.41 = 48,428.23/x
  3. Step 3: Cross multiply
    111,655.70x = 167,389.41 × 48,428.23
  4. Step 4: Simplify right side
    111,655.70x = 8,106,372,428.57
  5. Step 5: Solve for x
    x = 8,106,372,428.57/111,655.70
  6. Step 6: Final answer
    x = 72,601.51

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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.