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Finding the Fourth Proportional to 459,074.60, 688,611.90 and 122,114.60

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Solution

The fourth proportional to 459,074.60, 688,611.90 and 122,114.60 is: 183,171.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,074.60 : 688,611.90 = 122,114.60 : x
  2. Step 2: Convert to fraction form
    459,074.60/688,611.90 = 122,114.60/x
  3. Step 3: Cross multiply
    459,074.60x = 688,611.90 × 122,114.60
  4. Step 4: Simplify right side
    459,074.60x = 84,089,566,723.74
  5. Step 5: Solve for x
    x = 84,089,566,723.74/459,074.60
  6. Step 6: Final answer
    x = 183,171.90

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Similar ratio
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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.