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Finding the Fourth Proportional to 353,618.46, 530,413.31 and 87,372.27

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Solution

The fourth proportional to 353,618.46, 530,413.31 and 87,372.27 is: 131,054.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,618.46 : 530,413.31 = 87,372.27 : x
  2. Step 2: Convert to fraction form
    353,618.46/530,413.31 = 87,372.27/x
  3. Step 3: Cross multiply
    353,618.46x = 530,413.31 × 87,372.27
  4. Step 4: Simplify right side
    353,618.46x = 46,343,415,151.34
  5. Step 5: Solve for x
    x = 46,343,415,151.34/353,618.46
  6. Step 6: Final answer
    x = 131,054.85

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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.