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Finding the Fourth Proportional to 202,323.54, 279,048.60 and 129,733.32

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Solution

The fourth proportional to 202,323.54, 279,048.60 and 129,733.32 is: 178,930.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,323.54 : 279,048.60 = 129,733.32 : x
  2. Step 2: Convert to fraction form
    202,323.54/279,048.60 = 129,733.32/x
  3. Step 3: Cross multiply
    202,323.54x = 279,048.60 × 129,733.32
  4. Step 4: Simplify right side
    202,323.54x = 36,201,901,319.35
  5. Step 5: Solve for x
    x = 36,201,901,319.35/202,323.54
  6. Step 6: Final answer
    x = 178,930.74

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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.