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Finding the Fourth Proportional to 76,383.60, 114,575.40 and 51,014.40

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Solution

The fourth proportional to 76,383.60, 114,575.40 and 51,014.40 is: 76,521.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,383.60 : 114,575.40 = 51,014.40 : x
  2. Step 2: Convert to fraction form
    76,383.60/114,575.40 = 51,014.40/x
  3. Step 3: Cross multiply
    76,383.60x = 114,575.40 × 51,014.40
  4. Step 4: Simplify right side
    76,383.60x = 5,844,995,285.76
  5. Step 5: Solve for x
    x = 5,844,995,285.76/76,383.60
  6. Step 6: Final answer
    x = 76,521.60

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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.