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Finding the Fourth Proportional to 119,257.80, 178,903.71 and 40,394.58

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Solution

The fourth proportional to 119,257.80, 178,903.71 and 40,394.58 is: 60,597.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,257.80 : 178,903.71 = 40,394.58 : x
  2. Step 2: Convert to fraction form
    119,257.80/178,903.71 = 40,394.58/x
  3. Step 3: Cross multiply
    119,257.80x = 178,903.71 × 40,394.58
  4. Step 4: Simplify right side
    119,257.80x = 7,226,740,225.89
  5. Step 5: Solve for x
    x = 7,226,740,225.89/119,257.80
  6. Step 6: Final answer
    x = 60,597.63

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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.