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Finding the Fourth Proportional to 173,887.20, 260,830.80 and 162,136.80

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Solution

The fourth proportional to 173,887.20, 260,830.80 and 162,136.80 is: 243,205.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,887.20 : 260,830.80 = 162,136.80 : x
  2. Step 2: Convert to fraction form
    173,887.20/260,830.80 = 162,136.80/x
  3. Step 3: Cross multiply
    173,887.20x = 260,830.80 × 162,136.80
  4. Step 4: Simplify right side
    173,887.20x = 42,290,271,253.44
  5. Step 5: Solve for x
    x = 42,290,271,253.44/173,887.20
  6. Step 6: Final answer
    x = 243,205.20

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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.