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Finding the Fourth Proportional to 245,636.40, 367,579.80 and 170,403.60

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Solution

The fourth proportional to 245,636.40, 367,579.80 and 170,403.60 is: 254,998.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,636.40 : 367,579.80 = 170,403.60 : x
  2. Step 2: Convert to fraction form
    245,636.40/367,579.80 = 170,403.60/x
  3. Step 3: Cross multiply
    245,636.40x = 367,579.80 × 170,403.60
  4. Step 4: Simplify right side
    245,636.40x = 62,636,921,207.28
  5. Step 5: Solve for x
    x = 62,636,921,207.28/245,636.40
  6. Step 6: Final answer
    x = 254,998.53

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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.