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Finding the Fourth Proportional to 144,829,003.60, 216,960,070.20 and 87,149,940.40

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Solution

The fourth proportional to 144,829,003.60, 216,960,070.20 and 87,149,940.40 is: 130,554,355.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,829,003.60 : 216,960,070.20 = 87,149,940.40 : x
  2. Step 2: Convert to fraction form
    144,829,003.60/216,960,070.20 = 87,149,940.40/x
  3. Step 3: Cross multiply
    144,829,003.60x = 216,960,070.20 × 87,149,940.40
  4. Step 4: Simplify right side
    144,829,003.60x = 18,908,057,187,109,816
  5. Step 5: Solve for x
    x = 18,908,057,187,109,816/144,829,003.60
  6. Step 6: Final answer
    x = 130,554,355.25

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