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Finding the Third Proportional to 60,783.75 and 130,558.50

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Solution

The third proportional to 60,783.75 and 130,558.50 is: 280,428.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,783.75 : 130,558.50 = 130,558.50 : x
  2. Step 2: Convert to fraction form
    60,783.75/130,558.50 = 130,558.50/x
  3. Step 3: Cross multiply
    60,783.75x = 130,558.50 × 130,558.50
  4. Step 4: Simplify right side
    60,783.75x = 17,045,521,922.25
  5. Step 5: Solve for x
    x = 17,045,521,922.25/60,783.75
  6. Step 6: Final answer
    x = 280,428.93

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.