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Finding the Fourth Proportional to 173,606.20, 260,409.30 and 84,916.60

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Solution

The fourth proportional to 173,606.20, 260,409.30 and 84,916.60 is: 127,374.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,606.20 : 260,409.30 = 84,916.60 : x
  2. Step 2: Convert to fraction form
    173,606.20/260,409.30 = 84,916.60/x
  3. Step 3: Cross multiply
    173,606.20x = 260,409.30 × 84,916.60
  4. Step 4: Simplify right side
    173,606.20x = 22,113,072,364.38
  5. Step 5: Solve for x
    x = 22,113,072,364.38/173,606.20
  6. Step 6: Final answer
    x = 127,374.90

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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.