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Finding the Fourth Proportional to 86,420.52, 119,260.32 and 46,676.52

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Solution

The fourth proportional to 86,420.52, 119,260.32 and 46,676.52 is: 64,413.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,420.52 : 119,260.32 = 46,676.52 : x
  2. Step 2: Convert to fraction form
    86,420.52/119,260.32 = 46,676.52/x
  3. Step 3: Cross multiply
    86,420.52x = 119,260.32 × 46,676.52
  4. Step 4: Simplify right side
    86,420.52x = 5,566,656,711.69
  5. Step 5: Solve for x
    x = 5,566,656,711.69/86,420.52
  6. Step 6: Final answer
    x = 64,413.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.