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Finding the Fourth Proportional to 292,378.78, 438,583.72 and 92,714.92

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Solution

The fourth proportional to 292,378.78, 438,583.72 and 92,714.92 is: 139,077.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,378.78 : 438,583.72 = 92,714.92 : x
  2. Step 2: Convert to fraction form
    292,378.78/438,583.72 = 92,714.92/x
  3. Step 3: Cross multiply
    292,378.78x = 438,583.72 × 92,714.92
  4. Step 4: Simplify right side
    292,378.78x = 40,663,254,513.10
  5. Step 5: Solve for x
    x = 40,663,254,513.10/292,378.78
  6. Step 6: Final answer
    x = 139,077.31

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