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Finding the Fourth Proportional to 338,652.95, 508,007.04 and 170,086.55

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Solution

The fourth proportional to 338,652.95, 508,007.04 and 170,086.55 is: 255,143.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,652.95 : 508,007.04 = 170,086.55 : x
  2. Step 2: Convert to fraction form
    338,652.95/508,007.04 = 170,086.55/x
  3. Step 3: Cross multiply
    338,652.95x = 508,007.04 × 170,086.55
  4. Step 4: Simplify right side
    338,652.95x = 86,405,164,809.31
  5. Step 5: Solve for x
    x = 86,405,164,809.31/338,652.95
  6. Step 6: Final answer
    x = 255,143.69

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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.