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Finding the Fourth Proportional to 173,859.20, 260,788.80 and 162,108.80

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Solution

The fourth proportional to 173,859.20, 260,788.80 and 162,108.80 is: 243,163.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,859.20 : 260,788.80 = 162,108.80 : x
  2. Step 2: Convert to fraction form
    173,859.20/260,788.80 = 162,108.80/x
  3. Step 3: Cross multiply
    173,859.20x = 260,788.80 × 162,108.80
  4. Step 4: Simplify right side
    173,859.20x = 42,276,159,421.44
  5. Step 5: Solve for x
    x = 42,276,159,421.44/173,859.20
  6. Step 6: Final answer
    x = 243,163.20

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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.