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Finding the Fourth Proportional to 301,014.61, 451,520.99 and 76,374.61

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Solution

The fourth proportional to 301,014.61, 451,520.99 and 76,374.61 is: 114,561.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,014.61 : 451,520.99 = 76,374.61 : x
  2. Step 2: Convert to fraction form
    301,014.61/451,520.99 = 76,374.61/x
  3. Step 3: Cross multiply
    301,014.61x = 451,520.99 × 76,374.61
  4. Step 4: Simplify right side
    301,014.61x = 34,484,739,987.00
  5. Step 5: Solve for x
    x = 34,484,739,987.00/301,014.61
  6. Step 6: Final answer
    x = 114,561.68

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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.