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Finding the Fourth Proportional to 347,056.68, 519,990.90 and 189,395.88

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Solution

The fourth proportional to 347,056.68, 519,990.90 and 189,395.88 is: 283,769.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,056.68 : 519,990.90 = 189,395.88 : x
  2. Step 2: Convert to fraction form
    347,056.68/519,990.90 = 189,395.88/x
  3. Step 3: Cross multiply
    347,056.68x = 519,990.90 × 189,395.88
  4. Step 4: Simplify right side
    347,056.68x = 98,484,134,097.49
  5. Step 5: Solve for x
    x = 98,484,134,097.49/347,056.68
  6. Step 6: Final answer
    x = 283,769.60

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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.