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Finding the Fourth Proportional to 53,978,934.40, 80,968,401.60 and 48,772,124.80

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Solution

The fourth proportional to 53,978,934.40, 80,968,401.60 and 48,772,124.80 is: 73,158,187.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,978,934.40 : 80,968,401.60 = 48,772,124.80 : x
  2. Step 2: Convert to fraction form
    53,978,934.40/80,968,401.60 = 48,772,124.80/x
  3. Step 3: Cross multiply
    53,978,934.40x = 80,968,401.60 × 48,772,124.80
  4. Step 4: Simplify right side
    53,978,934.40x = 3,949,000,987,691,719
  5. Step 5: Solve for x
    x = 3,949,000,987,691,719/53,978,934.40
  6. Step 6: Final answer
    x = 73,158,187.20

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Why These Related Problems?

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