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Finding the Fourth Proportional to 280,958.62, 387,925.96 and 173,675.74

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Solution

The fourth proportional to 280,958.62, 387,925.96 and 173,675.74 is: 239,798.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,958.62 : 387,925.96 = 173,675.74 : x
  2. Step 2: Convert to fraction form
    280,958.62/387,925.96 = 173,675.74/x
  3. Step 3: Cross multiply
    280,958.62x = 387,925.96 × 173,675.74
  4. Step 4: Simplify right side
    280,958.62x = 67,373,328,168.21
  5. Step 5: Solve for x
    x = 67,373,328,168.21/280,958.62
  6. Step 6: Final answer
    x = 239,798.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.