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Finding the Fourth Proportional to 275,657.52, 380,448.52 and 168,289.79

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Solution

The fourth proportional to 275,657.52, 380,448.52 and 168,289.79 is: 232,265.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,657.52 : 380,448.52 = 168,289.79 : x
  2. Step 2: Convert to fraction form
    275,657.52/380,448.52 = 168,289.79/x
  3. Step 3: Cross multiply
    275,657.52x = 380,448.52 × 168,289.79
  4. Step 4: Simplify right side
    275,657.52x = 64,025,602,067.01
  5. Step 5: Solve for x
    x = 64,025,602,067.01/275,657.52
  6. Step 6: Final answer
    x = 232,265.03

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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.