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Finding the Fourth Proportional to 126,834, 175,036.39 and 70,245.38

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Solution

The fourth proportional to 126,834, 175,036.39 and 70,245.38 is: 96,941.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,834 : 175,036.39 = 70,245.38 : x
  2. Step 2: Convert to fraction form
    126,834/175,036.39 = 70,245.38/x
  3. Step 3: Cross multiply
    126,834x = 175,036.39 × 70,245.38
  4. Step 4: Simplify right side
    126,834x = 12,295,496,678.58
  5. Step 5: Solve for x
    x = 12,295,496,678.58/126,834
  6. Step 6: Final answer
    x = 96,941.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.