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Finding the Fourth Proportional to 235,528.92, 352,848.35 and 139,178.73

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Solution

The fourth proportional to 235,528.92, 352,848.35 and 139,178.73 is: 208,505.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,528.92 : 352,848.35 = 139,178.73 : x
  2. Step 2: Convert to fraction form
    235,528.92/352,848.35 = 139,178.73/x
  3. Step 3: Cross multiply
    235,528.92x = 352,848.35 × 139,178.73
  4. Step 4: Simplify right side
    235,528.92x = 49,108,984,539.70
  5. Step 5: Solve for x
    x = 49,108,984,539.70/235,528.92
  6. Step 6: Final answer
    x = 208,505.11

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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.