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Finding the Fourth Proportional to 173,669.70, 260,504.55 and 84,980.10

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Solution

The fourth proportional to 173,669.70, 260,504.55 and 84,980.10 is: 127,470.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,669.70 : 260,504.55 = 84,980.10 : x
  2. Step 2: Convert to fraction form
    173,669.70/260,504.55 = 84,980.10/x
  3. Step 3: Cross multiply
    173,669.70x = 260,504.55 × 84,980.10
  4. Step 4: Simplify right side
    173,669.70x = 22,137,702,709.46
  5. Step 5: Solve for x
    x = 22,137,702,709.46/173,669.70
  6. Step 6: Final answer
    x = 127,470.15

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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.