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Finding the Fourth Proportional to 173,364.90, 260,047.35 and 120,220.80

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Solution

The fourth proportional to 173,364.90, 260,047.35 and 120,220.80 is: 180,331.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,364.90 : 260,047.35 = 120,220.80 : x
  2. Step 2: Convert to fraction form
    173,364.90/260,047.35 = 120,220.80/x
  3. Step 3: Cross multiply
    173,364.90x = 260,047.35 × 120,220.80
  4. Step 4: Simplify right side
    173,364.90x = 31,263,100,454.88
  5. Step 5: Solve for x
    x = 31,263,100,454.88/173,364.90
  6. Step 6: Final answer
    x = 180,331.20

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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.