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Finding the Fourth Proportional to 273,172.40, 409,407.92 and 130,804.35

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Solution

The fourth proportional to 273,172.40, 409,407.92 and 130,804.35 is: 196,038.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,172.40 : 409,407.92 = 130,804.35 : x
  2. Step 2: Convert to fraction form
    273,172.40/409,407.92 = 130,804.35/x
  3. Step 3: Cross multiply
    273,172.40x = 409,407.92 × 130,804.35
  4. Step 4: Simplify right side
    273,172.40x = 53,552,337,464.59
  5. Step 5: Solve for x
    x = 53,552,337,464.59/273,172.40
  6. Step 6: Final answer
    x = 196,038.61

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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.