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Finding the Fourth Proportional to 123,800.16, 170,846.10 and 67,211.54

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Solution

The fourth proportional to 123,800.16, 170,846.10 and 67,211.54 is: 92,752.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,800.16 : 170,846.10 = 67,211.54 : x
  2. Step 2: Convert to fraction form
    123,800.16/170,846.10 = 67,211.54/x
  3. Step 3: Cross multiply
    123,800.16x = 170,846.10 × 67,211.54
  4. Step 4: Simplify right side
    123,800.16x = 11,482,828,629.76
  5. Step 5: Solve for x
    x = 11,482,828,629.76/123,800.16
  6. Step 6: Final answer
    x = 92,752.94

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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.