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Finding the Fourth Proportional to 259,206.89, 357,538.58 and 171,990.08

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Solution

The fourth proportional to 259,206.89, 357,538.58 and 171,990.08 is: 237,235.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,206.89 : 357,538.58 = 171,990.08 : x
  2. Step 2: Convert to fraction form
    259,206.89/357,538.58 = 171,990.08/x
  3. Step 3: Cross multiply
    259,206.89x = 357,538.58 × 171,990.08
  4. Step 4: Simplify right side
    259,206.89x = 61,493,090,810.25
  5. Step 5: Solve for x
    x = 61,493,090,810.25/259,206.89
  6. Step 6: Final answer
    x = 237,235.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.