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Finding the Fourth Proportional to 306,074.60, 459,111.90 and 118,964.60

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Solution

The fourth proportional to 306,074.60, 459,111.90 and 118,964.60 is: 178,446.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,074.60 : 459,111.90 = 118,964.60 : x
  2. Step 2: Convert to fraction form
    306,074.60/459,111.90 = 118,964.60/x
  3. Step 3: Cross multiply
    306,074.60x = 459,111.90 × 118,964.60
  4. Step 4: Simplify right side
    306,074.60x = 54,618,063,538.74
  5. Step 5: Solve for x
    x = 54,618,063,538.74/306,074.60
  6. Step 6: Final answer
    x = 178,446.90

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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.