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Finding the Fourth Proportional to 306,010.40, 459,080.40 and 92,760.80

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Solution

The fourth proportional to 306,010.40, 459,080.40 and 92,760.80 is: 139,160.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,010.40 : 459,080.40 = 92,760.80 : x
  2. Step 2: Convert to fraction form
    306,010.40/459,080.40 = 92,760.80/x
  3. Step 3: Cross multiply
    306,010.40x = 459,080.40 × 92,760.80
  4. Step 4: Simplify right side
    306,010.40x = 42,584,665,168.32
  5. Step 5: Solve for x
    x = 42,584,665,168.32/306,010.40
  6. Step 6: Final answer
    x = 139,160.84

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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.