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Finding the Fourth Proportional to 173,156.80, 259,735.20 and 153,911.20

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Solution

The fourth proportional to 173,156.80, 259,735.20 and 153,911.20 is: 230,866.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,156.80 : 259,735.20 = 153,911.20 : x
  2. Step 2: Convert to fraction form
    173,156.80/259,735.20 = 153,911.20/x
  3. Step 3: Cross multiply
    173,156.80x = 259,735.20 × 153,911.20
  4. Step 4: Simplify right side
    173,156.80x = 39,976,156,314.24
  5. Step 5: Solve for x
    x = 39,976,156,314.24/173,156.80
  6. Step 6: Final answer
    x = 230,866.80

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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.