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Finding the Fourth Proportional to 48,602,136.80, 72,903,205.20 and 28,396,978.40

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Solution

The fourth proportional to 48,602,136.80, 72,903,205.20 and 28,396,978.40 is: 42,595,467.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,602,136.80 : 72,903,205.20 = 28,396,978.40 : x
  2. Step 2: Convert to fraction form
    48,602,136.80/72,903,205.20 = 28,396,978.40/x
  3. Step 3: Cross multiply
    48,602,136.80x = 72,903,205.20 × 28,396,978.40
  4. Step 4: Simplify right side
    48,602,136.80x = 2,070,230,743,355,167.75
  5. Step 5: Solve for x
    x = 2,070,230,743,355,167.75/48,602,136.80
  6. Step 6: Final answer
    x = 42,595,467.60

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