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Finding the Fourth Proportional to 235,671.93, 353,454.30 and 67,188.42

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Solution

The fourth proportional to 235,671.93, 353,454.30 and 67,188.42 is: 100,767.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,671.93 : 353,454.30 = 67,188.42 : x
  2. Step 2: Convert to fraction form
    235,671.93/353,454.30 = 67,188.42/x
  3. Step 3: Cross multiply
    235,671.93x = 353,454.30 × 67,188.42
  4. Step 4: Simplify right side
    235,671.93x = 23,748,035,959.21
  5. Step 5: Solve for x
    x = 23,748,035,959.21/235,671.93
  6. Step 6: Final answer
    x = 100,767.35

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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.