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Finding the Fourth Proportional to 123,685.56, 170,686.40 and 67,096.93

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Solution

The fourth proportional to 123,685.56, 170,686.40 and 67,096.93 is: 92,593.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,685.56 : 170,686.40 = 67,096.93 : x
  2. Step 2: Convert to fraction form
    123,685.56/170,686.40 = 67,096.93/x
  3. Step 3: Cross multiply
    123,685.56x = 170,686.40 × 67,096.93
  4. Step 4: Simplify right side
    123,685.56x = 11,452,533,432.75
  5. Step 5: Solve for x
    x = 11,452,533,432.75/123,685.56
  6. Step 6: Final answer
    x = 92,593.94

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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.