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Finding the Fourth Proportional to 152,408.88, 210,324.22 and 84,430.25

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Solution

The fourth proportional to 152,408.88, 210,324.22 and 84,430.25 is: 116,513.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,408.88 : 210,324.22 = 84,430.25 : x
  2. Step 2: Convert to fraction form
    152,408.88/210,324.22 = 84,430.25/x
  3. Step 3: Cross multiply
    152,408.88x = 210,324.22 × 84,430.25
  4. Step 4: Simplify right side
    152,408.88x = 17,757,726,475.66
  5. Step 5: Solve for x
    x = 17,757,726,475.66/152,408.88
  6. Step 6: Final answer
    x = 116,513.73

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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.