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Finding the Fourth Proportional to 119,188.86, 178,662.33 and 74,846.94

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Solution

The fourth proportional to 119,188.86, 178,662.33 and 74,846.94 is: 112,194.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,188.86 : 178,662.33 = 74,846.94 : x
  2. Step 2: Convert to fraction form
    119,188.86/178,662.33 = 74,846.94/x
  3. Step 3: Cross multiply
    119,188.86x = 178,662.33 × 74,846.94
  4. Step 4: Simplify right side
    119,188.86x = 13,372,328,693.77
  5. Step 5: Solve for x
    x = 13,372,328,693.77/119,188.86
  6. Step 6: Final answer
    x = 112,194.45

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1.5x scale

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.