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Finding the Fourth Proportional to 178,485.68, 267,642.33 and 103,624.67

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Solution

The fourth proportional to 178,485.68, 267,642.33 and 103,624.67 is: 155,386.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,485.68 : 267,642.33 = 103,624.67 : x
  2. Step 2: Convert to fraction form
    178,485.68/267,642.33 = 103,624.67/x
  3. Step 3: Cross multiply
    178,485.68x = 267,642.33 × 103,624.67
  4. Step 4: Simplify right side
    178,485.68x = 27,734,348,124.28
  5. Step 5: Solve for x
    x = 27,734,348,124.28/178,485.68
  6. Step 6: Final answer
    x = 155,386.97

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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.