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Finding the Fourth Proportional to 292,313.16, 438,481.94 and 92,629.13

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Solution

The fourth proportional to 292,313.16, 438,481.94 and 92,629.13 is: 138,947.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,313.16 : 438,481.94 = 92,629.13 : x
  2. Step 2: Convert to fraction form
    292,313.16/438,481.94 = 92,629.13/x
  3. Step 3: Cross multiply
    292,313.16x = 438,481.94 × 92,629.13
  4. Step 4: Simplify right side
    292,313.16x = 40,616,197,967.36
  5. Step 5: Solve for x
    x = 40,616,197,967.36/292,313.16
  6. Step 6: Final answer
    x = 138,947.55

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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.