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Finding the Fourth Proportional to 114,152.67, 171,258.21 and 66,807.63

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Solution

The fourth proportional to 114,152.67, 171,258.21 and 66,807.63 is: 100,228.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,152.67 : 171,258.21 = 66,807.63 : x
  2. Step 2: Convert to fraction form
    114,152.67/171,258.21 = 66,807.63/x
  3. Step 3: Cross multiply
    114,152.67x = 171,258.21 × 66,807.63
  4. Step 4: Simplify right side
    114,152.67x = 11,441,355,128.14
  5. Step 5: Solve for x
    x = 11,441,355,128.14/114,152.67
  6. Step 6: Final answer
    x = 100,228.54

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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.