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Finding the Fourth Proportional to 338,213.61, 507,378.87 and 113,595.75

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Solution

The fourth proportional to 338,213.61, 507,378.87 and 113,595.75 is: 170,413.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,213.61 : 507,378.87 = 113,595.75 : x
  2. Step 2: Convert to fraction form
    338,213.61/507,378.87 = 113,595.75/x
  3. Step 3: Cross multiply
    338,213.61x = 507,378.87 × 113,595.75
  4. Step 4: Simplify right side
    338,213.61x = 57,636,083,271.80
  5. Step 5: Solve for x
    x = 57,636,083,271.80/338,213.61
  6. Step 6: Final answer
    x = 170,413.26

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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.