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Finding the Fourth Proportional to 137,999.70, 206,999.55 and 116,020.35

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Solution

The fourth proportional to 137,999.70, 206,999.55 and 116,020.35 is: 174,030.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,999.70 : 206,999.55 = 116,020.35 : x
  2. Step 2: Convert to fraction form
    137,999.70/206,999.55 = 116,020.35/x
  3. Step 3: Cross multiply
    137,999.70x = 206,999.55 × 116,020.35
  4. Step 4: Simplify right side
    137,999.70x = 24,016,160,240.84
  5. Step 5: Solve for x
    x = 24,016,160,240.84/137,999.70
  6. Step 6: Final answer
    x = 174,030.53

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1.5x scale

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.