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Finding the Fourth Proportional to 173,313.70, 259,970.55 and 143,764.90

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Solution

The fourth proportional to 173,313.70, 259,970.55 and 143,764.90 is: 215,647.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,313.70 : 259,970.55 = 143,764.90 : x
  2. Step 2: Convert to fraction form
    173,313.70/259,970.55 = 143,764.90/x
  3. Step 3: Cross multiply
    173,313.70x = 259,970.55 × 143,764.90
  4. Step 4: Simplify right side
    173,313.70x = 37,374,640,123.70
  5. Step 5: Solve for x
    x = 37,374,640,123.70/173,313.70
  6. Step 6: Final answer
    x = 215,647.35

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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.