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Finding the Fourth Proportional to 326,139.05, 489,254.72 and 101,522.19

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Solution

The fourth proportional to 326,139.05, 489,254.72 and 101,522.19 is: 152,297.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,139.05 : 489,254.72 = 101,522.19 : x
  2. Step 2: Convert to fraction form
    326,139.05/489,254.72 = 101,522.19/x
  3. Step 3: Cross multiply
    326,139.05x = 489,254.72 × 101,522.19
  4. Step 4: Simplify right side
    326,139.05x = 49,670,208,269.54
  5. Step 5: Solve for x
    x = 49,670,208,269.54/326,139.05
  6. Step 6: Final answer
    x = 152,297.64

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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.