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Finding the Fourth Proportional to 103,676.51, 155,507.46 and 40,484.76

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Solution

The fourth proportional to 103,676.51, 155,507.46 and 40,484.76 is: 60,724.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,676.51 : 155,507.46 = 40,484.76 : x
  2. Step 2: Convert to fraction form
    103,676.51/155,507.46 = 40,484.76/x
  3. Step 3: Cross multiply
    103,676.51x = 155,507.46 × 40,484.76
  4. Step 4: Simplify right side
    103,676.51x = 6,295,682,196.31
  5. Step 5: Solve for x
    x = 6,295,682,196.31/103,676.51
  6. Step 6: Final answer
    x = 60,724.29

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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.