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Finding the Fourth Proportional to 124,938, 187,432.92 and 51,066

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Solution

The fourth proportional to 124,938, 187,432.92 and 51,066 is: 76,609.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,938 : 187,432.92 = 51,066 : x
  2. Step 2: Convert to fraction form
    124,938/187,432.92 = 51,066/x
  3. Step 3: Cross multiply
    124,938x = 187,432.92 × 51,066
  4. Step 4: Simplify right side
    124,938x = 9,571,449,492.72
  5. Step 5: Solve for x
    x = 9,571,449,492.72/124,938
  6. Step 6: Final answer
    x = 76,609.59

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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.