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Finding the Fourth Proportional to 171,699.40, 257,568.30 and 53,369.80

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Solution

The fourth proportional to 171,699.40, 257,568.30 and 53,369.80 is: 80,060.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,699.40 : 257,568.30 = 53,369.80 : x
  2. Step 2: Convert to fraction form
    171,699.40/257,568.30 = 53,369.80/x
  3. Step 3: Cross multiply
    171,699.40x = 257,568.30 × 53,369.80
  4. Step 4: Simplify right side
    171,699.40x = 13,746,368,657.34
  5. Step 5: Solve for x
    x = 13,746,368,657.34/171,699.40
  6. Step 6: Final answer
    x = 80,060.67

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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.