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Finding the Fourth Proportional to 180,164.72, 248,627.40 and 100,676.72

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Solution

The fourth proportional to 180,164.72, 248,627.40 and 100,676.72 is: 138,933.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,164.72 : 248,627.40 = 100,676.72 : x
  2. Step 2: Convert to fraction form
    180,164.72/248,627.40 = 100,676.72/x
  3. Step 3: Cross multiply
    180,164.72x = 248,627.40 × 100,676.72
  4. Step 4: Simplify right side
    180,164.72x = 25,030,991,134.13
  5. Step 5: Solve for x
    x = 25,030,991,134.13/180,164.72
  6. Step 6: Final answer
    x = 138,933.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.