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Finding the Fourth Proportional to 124,871, 187,306.68 and 50,999

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Solution

The fourth proportional to 124,871, 187,306.68 and 50,999 is: 76,498.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,871 : 187,306.68 = 50,999 : x
  2. Step 2: Convert to fraction form
    124,871/187,306.68 = 50,999/x
  3. Step 3: Cross multiply
    124,871x = 187,306.68 × 50,999
  4. Step 4: Simplify right side
    124,871x = 9,552,453,373.32
  5. Step 5: Solve for x
    x = 9,552,453,373.32/124,871
  6. Step 6: Final answer
    x = 76,498.57

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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.