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Finding the Fourth Proportional to 185,758.98, 278,638.44 and 45,516.39

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Solution

The fourth proportional to 185,758.98, 278,638.44 and 45,516.39 is: 68,274.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,758.98 : 278,638.44 = 45,516.39 : x
  2. Step 2: Convert to fraction form
    185,758.98/278,638.44 = 45,516.39/x
  3. Step 3: Cross multiply
    185,758.98x = 278,638.44 × 45,516.39
  4. Step 4: Simplify right side
    185,758.98x = 12,682,615,904.03
  5. Step 5: Solve for x
    x = 12,682,615,904.03/185,758.98
  6. Step 6: Final answer
    x = 68,274.58

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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.