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Finding the Fourth Proportional to 188,385.30, 260,040.06 and 124,743.60

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Solution

The fourth proportional to 188,385.30, 260,040.06 and 124,743.60 is: 172,191.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,385.30 : 260,040.06 = 124,743.60 : x
  2. Step 2: Convert to fraction form
    188,385.30/260,040.06 = 124,743.60/x
  3. Step 3: Cross multiply
    188,385.30x = 260,040.06 × 124,743.60
  4. Step 4: Simplify right side
    188,385.30x = 32,438,333,228.62
  5. Step 5: Solve for x
    x = 32,438,333,228.62/188,385.30
  6. Step 6: Final answer
    x = 172,191.42

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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.