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Finding the Fourth Proportional to 253,663.32, 350,055.20 and 140,485.96

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Solution

The fourth proportional to 253,663.32, 350,055.20 and 140,485.96 is: 193,870.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,663.32 : 350,055.20 = 140,485.96 : x
  2. Step 2: Convert to fraction form
    253,663.32/350,055.20 = 140,485.96/x
  3. Step 3: Cross multiply
    253,663.32x = 350,055.20 × 140,485.96
  4. Step 4: Simplify right side
    253,663.32x = 49,177,840,824.99
  5. Step 5: Solve for x
    x = 49,177,840,824.99/253,663.32
  6. Step 6: Final answer
    x = 193,870.52

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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.