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Finding the Fourth Proportional to 124,529.44, 186,738.72 and 45,588.64

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Solution

The fourth proportional to 124,529.44, 186,738.72 and 45,588.64 is: 68,362.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,529.44 : 186,738.72 = 45,588.64 : x
  2. Step 2: Convert to fraction form
    124,529.44/186,738.72 = 45,588.64/x
  3. Step 3: Cross multiply
    124,529.44x = 186,738.72 × 45,588.64
  4. Step 4: Simplify right side
    124,529.44x = 8,513,164,280.14
  5. Step 5: Solve for x
    x = 8,513,164,280.14/124,529.44
  6. Step 6: Final answer
    x = 68,362.66

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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.