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Finding the Fourth Proportional to 112,413.80, 168,620.70 and 29,307.80

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Solution

The fourth proportional to 112,413.80, 168,620.70 and 29,307.80 is: 43,961.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,413.80 : 168,620.70 = 29,307.80 : x
  2. Step 2: Convert to fraction form
    112,413.80/168,620.70 = 29,307.80/x
  3. Step 3: Cross multiply
    112,413.80x = 168,620.70 × 29,307.80
  4. Step 4: Simplify right side
    112,413.80x = 4,941,901,751.46
  5. Step 5: Solve for x
    x = 4,941,901,751.46/112,413.80
  6. Step 6: Final answer
    x = 43,961.70

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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.