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Finding the Fourth Proportional to 424,559.15, 636,736.66 and 124,958.37

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Solution

The fourth proportional to 424,559.15, 636,736.66 and 124,958.37 is: 187,407.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,559.15 : 636,736.66 = 124,958.37 : x
  2. Step 2: Convert to fraction form
    424,559.15/636,736.66 = 124,958.37/x
  3. Step 3: Cross multiply
    424,559.15x = 636,736.66 × 124,958.37
  4. Step 4: Simplify right side
    424,559.15x = 79,565,574,840.45
  5. Step 5: Solve for x
    x = 79,565,574,840.45/424,559.15
  6. Step 6: Final answer
    x = 187,407.52

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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.