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Finding the Fourth Proportional to 235,291.78, 324,696.10 and 127,858.24

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Solution

The fourth proportional to 235,291.78, 324,696.10 and 127,858.24 is: 176,440.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,291.78 : 324,696.10 = 127,858.24 : x
  2. Step 2: Convert to fraction form
    235,291.78/324,696.10 = 127,858.24/x
  3. Step 3: Cross multiply
    235,291.78x = 324,696.10 × 127,858.24
  4. Step 4: Simplify right side
    235,291.78x = 41,515,071,880.86
  5. Step 5: Solve for x
    x = 41,515,071,880.86/235,291.78
  6. Step 6: Final answer
    x = 176,440.81

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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.