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Finding the Fourth Proportional to 173,876.80, 260,815.20 and 162,212.80

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Solution

The fourth proportional to 173,876.80, 260,815.20 and 162,212.80 is: 243,319.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,876.80 : 260,815.20 = 162,212.80 : x
  2. Step 2: Convert to fraction form
    173,876.80/260,815.20 = 162,212.80/x
  3. Step 3: Cross multiply
    173,876.80x = 260,815.20 × 162,212.80
  4. Step 4: Simplify right side
    173,876.80x = 42,307,563,874.56
  5. Step 5: Solve for x
    x = 42,307,563,874.56/173,876.80
  6. Step 6: Final answer
    x = 243,319.20

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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.