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Finding the Fourth Proportional to 119,208.70, 178,701.88 and 40,267.72

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Solution

The fourth proportional to 119,208.70, 178,701.88 and 40,267.72 is: 60,364.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,208.70 : 178,701.88 = 40,267.72 : x
  2. Step 2: Convert to fraction form
    119,208.70/178,701.88 = 40,267.72/x
  3. Step 3: Cross multiply
    119,208.70x = 178,701.88 × 40,267.72
  4. Step 4: Simplify right side
    119,208.70x = 7,195,917,267.31
  5. Step 5: Solve for x
    x = 7,195,917,267.31/119,208.70
  6. Step 6: Final answer
    x = 60,364.03

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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.