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Finding the Fourth Proportional to 432,990.56, 649,566.48 and 152,685.92

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Solution

The fourth proportional to 432,990.56, 649,566.48 and 152,685.92 is: 229,057.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,990.56 : 649,566.48 = 152,685.92 : x
  2. Step 2: Convert to fraction form
    432,990.56/649,566.48 = 152,685.92/x
  3. Step 3: Cross multiply
    432,990.56x = 649,566.48 × 152,685.92
  4. Step 4: Simplify right side
    432,990.56x = 99,179,655,599.96
  5. Step 5: Solve for x
    x = 99,179,655,599.96/432,990.56
  6. Step 6: Final answer
    x = 229,057.32

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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.