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Finding the Fourth Proportional to 235,406.48, 353,109.71 and 140,928.08

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Solution

The fourth proportional to 235,406.48, 353,109.71 and 140,928.08 is: 211,392.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,406.48 : 353,109.71 = 140,928.08 : x
  2. Step 2: Convert to fraction form
    235,406.48/353,109.71 = 140,928.08/x
  3. Step 3: Cross multiply
    235,406.48x = 353,109.71 × 140,928.08
  4. Step 4: Simplify right side
    235,406.48x = 49,763,072,046.43
  5. Step 5: Solve for x
    x = 49,763,072,046.43/235,406.48
  6. Step 6: Final answer
    x = 211,392.11

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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.