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Finding the Fourth Proportional to 357,268.42, 535,206.03 and 199,020.34

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Solution

The fourth proportional to 357,268.42, 535,206.03 and 199,020.34 is: 298,142.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,268.42 : 535,206.03 = 199,020.34 : x
  2. Step 2: Convert to fraction form
    357,268.42/535,206.03 = 199,020.34/x
  3. Step 3: Cross multiply
    357,268.42x = 535,206.03 × 199,020.34
  4. Step 4: Simplify right side
    357,268.42x = 106,516,886,060.65
  5. Step 5: Solve for x
    x = 106,516,886,060.65/357,268.42
  6. Step 6: Final answer
    x = 298,142.46

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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.