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Finding the Fourth Proportional to 124,847.98, 187,290.64 and 45,956.20

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Solution

The fourth proportional to 124,847.98, 187,290.64 and 45,956.20 is: 68,941.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,847.98 : 187,290.64 = 45,956.20 : x
  2. Step 2: Convert to fraction form
    124,847.98/187,290.64 = 45,956.20/x
  3. Step 3: Cross multiply
    124,847.98x = 187,290.64 × 45,956.20
  4. Step 4: Simplify right side
    124,847.98x = 8,607,166,109.97
  5. Step 5: Solve for x
    x = 8,607,166,109.97/124,847.98
  6. Step 6: Final answer
    x = 68,941.17

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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.