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Finding the Fourth Proportional to 173,312.40, 259,968.60 and 84,738.90

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Solution

The fourth proportional to 173,312.40, 259,968.60 and 84,738.90 is: 127,108.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,312.40 : 259,968.60 = 84,738.90 : x
  2. Step 2: Convert to fraction form
    173,312.40/259,968.60 = 84,738.90/x
  3. Step 3: Cross multiply
    173,312.40x = 259,968.60 × 84,738.90
  4. Step 4: Simplify right side
    173,312.40x = 22,029,453,198.54
  5. Step 5: Solve for x
    x = 22,029,453,198.54/173,312.40
  6. Step 6: Final answer
    x = 127,108.35

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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.