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Finding the Fourth Proportional to 207,643.72, 310,327.60 and 151,601.85

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Solution

The fourth proportional to 207,643.72, 310,327.60 and 151,601.85 is: 226,571.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,643.72 : 310,327.60 = 151,601.85 : x
  2. Step 2: Convert to fraction form
    207,643.72/310,327.60 = 151,601.85/x
  3. Step 3: Cross multiply
    207,643.72x = 310,327.60 × 151,601.85
  4. Step 4: Simplify right side
    207,643.72x = 47,046,238,266.06
  5. Step 5: Solve for x
    x = 47,046,238,266.06/207,643.72
  6. Step 6: Final answer
    x = 226,571.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.