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Finding the Fourth Proportional to 245,788.86, 368,703.32 and 68,295.89

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Solution

The fourth proportional to 245,788.86, 368,703.32 and 68,295.89 is: 102,449.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,788.86 : 368,703.32 = 68,295.89 : x
  2. Step 2: Convert to fraction form
    245,788.86/368,703.32 = 68,295.89/x
  3. Step 3: Cross multiply
    245,788.86x = 368,703.32 × 68,295.89
  4. Step 4: Simplify right side
    245,788.86x = 25,180,921,965.63
  5. Step 5: Solve for x
    x = 25,180,921,965.63/245,788.86
  6. Step 6: Final answer
    x = 102,449.40

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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.