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Finding the Fourth Proportional to 78,410.54, 108,182.70 and 44,413.62

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Solution

The fourth proportional to 78,410.54, 108,182.70 and 44,413.62 is: 61,277.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,410.54 : 108,182.70 = 44,413.62 : x
  2. Step 2: Convert to fraction form
    78,410.54/108,182.70 = 44,413.62/x
  3. Step 3: Cross multiply
    78,410.54x = 108,182.70 × 44,413.62
  4. Step 4: Simplify right side
    78,410.54x = 4,804,785,328.37
  5. Step 5: Solve for x
    x = 4,804,785,328.37/78,410.54
  6. Step 6: Final answer
    x = 61,277.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.