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Finding the Fourth Proportional to 124,941, 187,411.68 and 51,069

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Solution

The fourth proportional to 124,941, 187,411.68 and 51,069 is: 76,603.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,941 : 187,411.68 = 51,069 : x
  2. Step 2: Convert to fraction form
    124,941/187,411.68 = 51,069/x
  3. Step 3: Cross multiply
    124,941x = 187,411.68 × 51,069
  4. Step 4: Simplify right side
    124,941x = 9,570,927,085.92
  5. Step 5: Solve for x
    x = 9,570,927,085.92/124,941
  6. Step 6: Final answer
    x = 76,603.57

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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.