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Finding the Fourth Proportional to 405,087,230.40, 607,647,434.40 and 117,872,894.40

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Solution

The fourth proportional to 405,087,230.40, 607,647,434.40 and 117,872,894.40 is: 176,814,168.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,087,230.40 : 607,647,434.40 = 117,872,894.40 : x
  2. Step 2: Convert to fraction form
    405,087,230.40/607,647,434.40 = 117,872,894.40/x
  3. Step 3: Cross multiply
    405,087,230.40x = 607,647,434.40 × 117,872,894.40
  4. Step 4: Simplify right side
    405,087,230.40x = 71,625,161,867,462,128
  5. Step 5: Solve for x
    x = 71,625,161,867,462,128/405,087,230.40
  6. Step 6: Final answer
    x = 176,814,168.63

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