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Finding the Fourth Proportional to 292,540.80, 438,825.60 and 152,572.80

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Solution

The fourth proportional to 292,540.80, 438,825.60 and 152,572.80 is: 228,866.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,540.80 : 438,825.60 = 152,572.80 : x
  2. Step 2: Convert to fraction form
    292,540.80/438,825.60 = 152,572.80/x
  3. Step 3: Cross multiply
    292,540.80x = 438,825.60 × 152,572.80
  4. Step 4: Simplify right side
    292,540.80x = 66,952,850,503.68
  5. Step 5: Solve for x
    x = 66,952,850,503.68/292,540.80
  6. Step 6: Final answer
    x = 228,866.71

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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.