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Finding the Fourth Proportional to 124,846.98, 187,289.14 and 45,955.20

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Solution

The fourth proportional to 124,846.98, 187,289.14 and 45,955.20 is: 68,939.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,846.98 : 187,289.14 = 45,955.20 : x
  2. Step 2: Convert to fraction form
    124,846.98/187,289.14 = 45,955.20/x
  3. Step 3: Cross multiply
    124,846.98x = 187,289.14 × 45,955.20
  4. Step 4: Simplify right side
    124,846.98x = 8,606,909,886.53
  5. Step 5: Solve for x
    x = 8,606,909,886.53/124,846.98
  6. Step 6: Final answer
    x = 68,939.67

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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.