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Finding the Fourth Proportional to 124,412.34, 186,628.23 and 45,524.82

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Solution

The fourth proportional to 124,412.34, 186,628.23 and 45,524.82 is: 68,290.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,412.34 : 186,628.23 = 45,524.82 : x
  2. Step 2: Convert to fraction form
    124,412.34/186,628.23 = 45,524.82/x
  3. Step 3: Cross multiply
    124,412.34x = 186,628.23 × 45,524.82
  4. Step 4: Simplify right side
    124,412.34x = 8,496,216,577.67
  5. Step 5: Solve for x
    x = 8,496,216,577.67/124,412.34
  6. Step 6: Final answer
    x = 68,290.79

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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.