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Finding the Fourth Proportional to 125,126.94, 187,580.43 and 65,028.90

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Solution

The fourth proportional to 125,126.94, 187,580.43 and 65,028.90 is: 97,486.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,126.94 : 187,580.43 = 65,028.90 : x
  2. Step 2: Convert to fraction form
    125,126.94/187,580.43 = 65,028.90/x
  3. Step 3: Cross multiply
    125,126.94x = 187,580.43 × 65,028.90
  4. Step 4: Simplify right side
    125,126.94x = 12,198,149,024.43
  5. Step 5: Solve for x
    x = 12,198,149,024.43/125,126.94
  6. Step 6: Final answer
    x = 97,486.19

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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.