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Finding the Fourth Proportional to 119,405.62, 178,960.81 and 60,258.21

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Solution

The fourth proportional to 119,405.62, 178,960.81 and 60,258.21 is: 90,312.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,405.62 : 178,960.81 = 60,258.21 : x
  2. Step 2: Convert to fraction form
    119,405.62/178,960.81 = 60,258.21/x
  3. Step 3: Cross multiply
    119,405.62x = 178,960.81 × 60,258.21
  4. Step 4: Simplify right side
    119,405.62x = 10,783,858,070.75
  5. Step 5: Solve for x
    x = 10,783,858,070.75/119,405.62
  6. Step 6: Final answer
    x = 90,312.82

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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.