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Finding the Fourth Proportional to 76,294.44, 105,283.50 and 42,303.53

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Solution

The fourth proportional to 76,294.44, 105,283.50 and 42,303.53 is: 58,377.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,294.44 : 105,283.50 = 42,303.53 : x
  2. Step 2: Convert to fraction form
    76,294.44/105,283.50 = 42,303.53/x
  3. Step 3: Cross multiply
    76,294.44x = 105,283.50 × 42,303.53
  4. Step 4: Simplify right side
    76,294.44x = 4,453,863,805.33
  5. Step 5: Solve for x
    x = 4,453,863,805.33/76,294.44
  6. Step 6: Final answer
    x = 58,377.31

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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.