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Finding the Fourth Proportional to 210,524.88, 290,524.41 and 113,728.77

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Solution

The fourth proportional to 210,524.88, 290,524.41 and 113,728.77 is: 156,945.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,524.88 : 290,524.41 = 113,728.77 : x
  2. Step 2: Convert to fraction form
    210,524.88/290,524.41 = 113,728.77/x
  3. Step 3: Cross multiply
    210,524.88x = 290,524.41 × 113,728.77
  4. Step 4: Simplify right side
    210,524.88x = 33,040,983,804.28
  5. Step 5: Solve for x
    x = 33,040,983,804.28/210,524.88
  6. Step 6: Final answer
    x = 156,945.74

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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.