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Finding the Fourth Proportional to 357,435.35, 535,336.46 and 170,578.07

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Solution

The fourth proportional to 357,435.35, 535,336.46 and 170,578.07 is: 255,477.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,435.35 : 535,336.46 = 170,578.07 : x
  2. Step 2: Convert to fraction form
    357,435.35/535,336.46 = 170,578.07/x
  3. Step 3: Cross multiply
    357,435.35x = 535,336.46 × 170,578.07
  4. Step 4: Simplify right side
    357,435.35x = 91,316,659,294.54
  5. Step 5: Solve for x
    x = 91,316,659,294.54/357,435.35
  6. Step 6: Final answer
    x = 255,477.42

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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.