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Finding the Fourth Proportional to 171,700.20, 257,550.30 and 168,784.20

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Solution

The fourth proportional to 171,700.20, 257,550.30 and 168,784.20 is: 253,176.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,700.20 : 257,550.30 = 168,784.20 : x
  2. Step 2: Convert to fraction form
    171,700.20/257,550.30 = 168,784.20/x
  3. Step 3: Cross multiply
    171,700.20x = 257,550.30 × 168,784.20
  4. Step 4: Simplify right side
    171,700.20x = 43,470,421,345.26
  5. Step 5: Solve for x
    x = 43,470,421,345.26/171,700.20
  6. Step 6: Final answer
    x = 253,176.30

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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.