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Finding the Fourth Proportional to 171,903.70, 257,855.55 and 162,062.20

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Solution

The fourth proportional to 171,903.70, 257,855.55 and 162,062.20 is: 243,093.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,903.70 : 257,855.55 = 162,062.20 : x
  2. Step 2: Convert to fraction form
    171,903.70/257,855.55 = 162,062.20/x
  3. Step 3: Cross multiply
    171,903.70x = 257,855.55 × 162,062.20
  4. Step 4: Simplify right side
    171,903.70x = 41,788,637,715.21
  5. Step 5: Solve for x
    x = 41,788,637,715.21/171,903.70
  6. Step 6: Final answer
    x = 243,093.30

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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.