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Finding the Fourth Proportional to 476,063.52, 714,092.20 and 121,074.47

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Solution

The fourth proportional to 476,063.52, 714,092.20 and 121,074.47 is: 181,610.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,063.52 : 714,092.20 = 121,074.47 : x
  2. Step 2: Convert to fraction form
    476,063.52/714,092.20 = 121,074.47/x
  3. Step 3: Cross multiply
    476,063.52x = 714,092.20 × 121,074.47
  4. Step 4: Simplify right side
    476,063.52x = 86,458,336,128.68
  5. Step 5: Solve for x
    x = 86,458,336,128.68/476,063.52
  6. Step 6: Final answer
    x = 181,610.92

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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.