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Finding the Fourth Proportional to 123,552.96, 170,503.02 and 66,964.32

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Solution

The fourth proportional to 123,552.96, 170,503.02 and 66,964.32 is: 92,410.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,552.96 : 170,503.02 = 66,964.32 : x
  2. Step 2: Convert to fraction form
    123,552.96/170,503.02 = 66,964.32/x
  3. Step 3: Cross multiply
    123,552.96x = 170,503.02 × 66,964.32
  4. Step 4: Simplify right side
    123,552.96x = 11,417,618,792.25
  5. Step 5: Solve for x
    x = 11,417,618,792.25/123,552.96
  6. Step 6: Final answer
    x = 92,410.73

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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.