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Finding the Fourth Proportional to 371,712.80, 557,569.20 and 122,362.40

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Solution

The fourth proportional to 371,712.80, 557,569.20 and 122,362.40 is: 183,543.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,712.80 : 557,569.20 = 122,362.40 : x
  2. Step 2: Convert to fraction form
    371,712.80/557,569.20 = 122,362.40/x
  3. Step 3: Cross multiply
    371,712.80x = 557,569.20 × 122,362.40
  4. Step 4: Simplify right side
    371,712.80x = 68,225,505,478.08
  5. Step 5: Solve for x
    x = 68,225,505,478.08/371,712.80
  6. Step 6: Final answer
    x = 183,543.60

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