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Finding the Fourth Proportional to 125,671.63, 188,505.80 and 30,902.63

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Solution

The fourth proportional to 125,671.63, 188,505.80 and 30,902.63 is: 46,353.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,671.63 : 188,505.80 = 30,902.63 : x
  2. Step 2: Convert to fraction form
    125,671.63/188,505.80 = 30,902.63/x
  3. Step 3: Cross multiply
    125,671.63x = 188,505.80 × 30,902.63
  4. Step 4: Simplify right side
    125,671.63x = 5,825,325,307.01
  5. Step 5: Solve for x
    x = 5,825,325,307.01/125,671.63
  6. Step 6: Final answer
    x = 46,353.54

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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.