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Finding the Fourth Proportional to 356,163.95, 534,200.80 and 100,019.77

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Solution

The fourth proportional to 356,163.95, 534,200.80 and 100,019.77 is: 150,016.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,163.95 : 534,200.80 = 100,019.77 : x
  2. Step 2: Convert to fraction form
    356,163.95/534,200.80 = 100,019.77/x
  3. Step 3: Cross multiply
    356,163.95x = 534,200.80 × 100,019.77
  4. Step 4: Simplify right side
    356,163.95x = 53,430,641,149.82
  5. Step 5: Solve for x
    x = 53,430,641,149.82/356,163.95
  6. Step 6: Final answer
    x = 150,016.98

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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.