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Finding the Fourth Proportional to 344,482.88, 475,396.70 and 189,426.15

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Solution

The fourth proportional to 344,482.88, 475,396.70 and 189,426.15 is: 261,413.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,482.88 : 475,396.70 = 189,426.15 : x
  2. Step 2: Convert to fraction form
    344,482.88/475,396.70 = 189,426.15/x
  3. Step 3: Cross multiply
    344,482.88x = 475,396.70 × 189,426.15
  4. Step 4: Simplify right side
    344,482.88x = 90,052,565,656.57
  5. Step 5: Solve for x
    x = 90,052,565,656.57/344,482.88
  6. Step 6: Final answer
    x = 261,413.77

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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.