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Finding the Fourth Proportional to 137,951.99, 206,925.93 and 38,109.98

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Solution

The fourth proportional to 137,951.99, 206,925.93 and 38,109.98 is: 57,164.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,951.99 : 206,925.93 = 38,109.98 : x
  2. Step 2: Convert to fraction form
    137,951.99/206,925.93 = 38,109.98/x
  3. Step 3: Cross multiply
    137,951.99x = 206,925.93 × 38,109.98
  4. Step 4: Simplify right side
    137,951.99x = 7,885,942,019.15
  5. Step 5: Solve for x
    x = 7,885,942,019.15/137,951.99
  6. Step 6: Final answer
    x = 57,164.40

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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.