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Finding the Fourth Proportional to 238,873.08, 358,233.32 and 78,919.14

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Solution

The fourth proportional to 238,873.08, 358,233.32 and 78,919.14 is: 118,353.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,873.08 : 358,233.32 = 78,919.14 : x
  2. Step 2: Convert to fraction form
    238,873.08/358,233.32 = 78,919.14/x
  3. Step 3: Cross multiply
    238,873.08x = 358,233.32 × 78,919.14
  4. Step 4: Simplify right side
    238,873.08x = 28,271,465,533.74
  5. Step 5: Solve for x
    x = 28,271,465,533.74/238,873.08
  6. Step 6: Final answer
    x = 118,353.50

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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.