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Finding the Fourth Proportional to 119,181.50, 164,430.42 and 67,491.55

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Solution

The fourth proportional to 119,181.50, 164,430.42 and 67,491.55 is: 93,115.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,181.50 : 164,430.42 = 67,491.55 : x
  2. Step 2: Convert to fraction form
    119,181.50/164,430.42 = 67,491.55/x
  3. Step 3: Cross multiply
    119,181.50x = 164,430.42 × 67,491.55
  4. Step 4: Simplify right side
    119,181.50x = 11,097,664,245.04
  5. Step 5: Solve for x
    x = 11,097,664,245.04/119,181.50
  6. Step 6: Final answer
    x = 93,115.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.