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Finding the Fourth Proportional to 100,670,032.80, 150,893,074.80 and 55,264,413.60

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Solution

The fourth proportional to 100,670,032.80, 150,893,074.80 and 55,264,413.60 is: 82,835,150.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,670,032.80 : 150,893,074.80 = 55,264,413.60 : x
  2. Step 2: Convert to fraction form
    100,670,032.80/150,893,074.80 = 55,264,413.60/x
  3. Step 3: Cross multiply
    100,670,032.80x = 150,893,074.80 × 55,264,413.60
  4. Step 4: Simplify right side
    100,670,032.80x = 8,339,017,295,122,938
  5. Step 5: Solve for x
    x = 8,339,017,295,122,938/100,670,032.80
  6. Step 6: Final answer
    x = 82,835,150.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.