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Finding the Fourth Proportional to 171,510.22, 257,290.23 and 53,191.09

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Solution

The fourth proportional to 171,510.22, 257,290.23 and 53,191.09 is: 79,794.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,510.22 : 257,290.23 = 53,191.09 : x
  2. Step 2: Convert to fraction form
    171,510.22/257,290.23 = 53,191.09/x
  3. Step 3: Cross multiply
    171,510.22x = 257,290.23 × 53,191.09
  4. Step 4: Simplify right side
    171,510.22x = 13,685,547,780.05
  5. Step 5: Solve for x
    x = 13,685,547,780.05/171,510.22
  6. Step 6: Final answer
    x = 79,794.36

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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.