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Finding the Fourth Proportional to 340,458.96, 510,921.72 and 118,842.96

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Solution

The fourth proportional to 340,458.96, 510,921.72 and 118,842.96 is: 178,345.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,458.96 : 510,921.72 = 118,842.96 : x
  2. Step 2: Convert to fraction form
    340,458.96/510,921.72 = 118,842.96/x
  3. Step 3: Cross multiply
    340,458.96x = 510,921.72 × 118,842.96
  4. Step 4: Simplify right side
    340,458.96x = 60,719,449,533.09
  5. Step 5: Solve for x
    x = 60,719,449,533.09/340,458.96
  6. Step 6: Final answer
    x = 178,345.87

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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.