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Finding the Fourth Proportional to 306,066.40, 459,164.40 and 92,816.80

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Solution

The fourth proportional to 306,066.40, 459,164.40 and 92,816.80 is: 139,244.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,066.40 : 459,164.40 = 92,816.80 : x
  2. Step 2: Convert to fraction form
    306,066.40/459,164.40 = 92,816.80/x
  3. Step 3: Cross multiply
    306,066.40x = 459,164.40 × 92,816.80
  4. Step 4: Simplify right side
    306,066.40x = 42,618,170,281.92
  5. Step 5: Solve for x
    x = 42,618,170,281.92/306,066.40
  6. Step 6: Final answer
    x = 139,244.85

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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.