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Finding the Fourth Proportional to 70,155.79, 105,234.59 and 23,408.66

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Solution

The fourth proportional to 70,155.79, 105,234.59 and 23,408.66 is: 35,113.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,155.79 : 105,234.59 = 23,408.66 : x
  2. Step 2: Convert to fraction form
    70,155.79/105,234.59 = 23,408.66/x
  3. Step 3: Cross multiply
    70,155.79x = 105,234.59 × 23,408.66
  4. Step 4: Simplify right side
    70,155.79x = 2,463,400,774.06
  5. Step 5: Solve for x
    x = 2,463,400,774.06/70,155.79
  6. Step 6: Final answer
    x = 35,113.29

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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.