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Finding the Fourth Proportional to 193,066.60, 289,599.90 and 169,719.40

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Solution

The fourth proportional to 193,066.60, 289,599.90 and 169,719.40 is: 254,579.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,066.60 : 289,599.90 = 169,719.40 : x
  2. Step 2: Convert to fraction form
    193,066.60/289,599.90 = 169,719.40/x
  3. Step 3: Cross multiply
    193,066.60x = 289,599.90 × 169,719.40
  4. Step 4: Simplify right side
    193,066.60x = 49,150,721,268.06
  5. Step 5: Solve for x
    x = 49,150,721,268.06/193,066.60
  6. Step 6: Final answer
    x = 254,579.10

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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.