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Finding the Fourth Proportional to 489,625.83, 734,442.84 and 134,659.32

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Solution

The fourth proportional to 489,625.83, 734,442.84 and 134,659.32 is: 201,990.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,625.83 : 734,442.84 = 134,659.32 : x
  2. Step 2: Convert to fraction form
    489,625.83/734,442.84 = 134,659.32/x
  3. Step 3: Cross multiply
    489,625.83x = 734,442.84 × 134,659.32
  4. Step 4: Simplify right side
    489,625.83x = 98,899,573,413.27
  5. Step 5: Solve for x
    x = 98,899,573,413.27/489,625.83
  6. Step 6: Final answer
    x = 201,990.11

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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.