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Finding the Fourth Proportional to 368,931.60, 553,656.60 and 158,720.40

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Solution

The fourth proportional to 368,931.60, 553,656.60 and 158,720.40 is: 238,192.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,931.60 : 553,656.60 = 158,720.40 : x
  2. Step 2: Convert to fraction form
    368,931.60/553,656.60 = 158,720.40/x
  3. Step 3: Cross multiply
    368,931.60x = 553,656.60 × 158,720.40
  4. Step 4: Simplify right side
    368,931.60x = 87,876,597,014.64
  5. Step 5: Solve for x
    x = 87,876,597,014.64/368,931.60
  6. Step 6: Final answer
    x = 238,192.11

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