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Finding the Fourth Proportional to 604,990.56, 907,416.72 and 161,793.12

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Solution

The fourth proportional to 604,990.56, 907,416.72 and 161,793.12 is: 242,671.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,990.56 : 907,416.72 = 161,793.12 : x
  2. Step 2: Convert to fraction form
    604,990.56/907,416.72 = 161,793.12/x
  3. Step 3: Cross multiply
    604,990.56x = 907,416.72 × 161,793.12
  4. Step 4: Simplify right side
    604,990.56x = 146,813,782,268.97
  5. Step 5: Solve for x
    x = 146,813,782,268.97/604,990.56
  6. Step 6: Final answer
    x = 242,671.20

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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.