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Finding the Fourth Proportional to 124,945, 187,417.68 and 51,073

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Solution

The fourth proportional to 124,945, 187,417.68 and 51,073 is: 76,609.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,945 : 187,417.68 = 51,073 : x
  2. Step 2: Convert to fraction form
    124,945/187,417.68 = 51,073/x
  3. Step 3: Cross multiply
    124,945x = 187,417.68 × 51,073
  4. Step 4: Simplify right side
    124,945x = 9,571,983,170.64
  5. Step 5: Solve for x
    x = 9,571,983,170.64/124,945
  6. Step 6: Final answer
    x = 76,609.57

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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.