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Finding the Fourth Proportional to 120,445.76, 180,730.32 and 57,337.28

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Solution

The fourth proportional to 120,445.76, 180,730.32 and 57,337.28 is: 86,035.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,445.76 : 180,730.32 = 57,337.28 : x
  2. Step 2: Convert to fraction form
    120,445.76/180,730.32 = 57,337.28/x
  3. Step 3: Cross multiply
    120,445.76x = 180,730.32 × 57,337.28
  4. Step 4: Simplify right side
    120,445.76x = 10,362,584,962.33
  5. Step 5: Solve for x
    x = 10,362,584,962.33/120,445.76
  6. Step 6: Final answer
    x = 86,035.28

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