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Finding the Fourth Proportional to 216,772.40, 325,158.60 and 194,999.60

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Solution

The fourth proportional to 216,772.40, 325,158.60 and 194,999.60 is: 292,499.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,772.40 : 325,158.60 = 194,999.60 : x
  2. Step 2: Convert to fraction form
    216,772.40/325,158.60 = 194,999.60/x
  3. Step 3: Cross multiply
    216,772.40x = 325,158.60 × 194,999.60
  4. Step 4: Simplify right side
    216,772.40x = 63,405,796,936.56
  5. Step 5: Solve for x
    x = 63,405,796,936.56/216,772.40
  6. Step 6: Final answer
    x = 292,499.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.