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Finding the Fourth Proportional to 178,402.40, 267,376.80 and 73,102.40

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Solution

The fourth proportional to 178,402.40, 267,376.80 and 73,102.40 is: 109,560.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,402.40 : 267,376.80 = 73,102.40 : x
  2. Step 2: Convert to fraction form
    178,402.40/267,376.80 = 73,102.40/x
  3. Step 3: Cross multiply
    178,402.40x = 267,376.80 × 73,102.40
  4. Step 4: Simplify right side
    178,402.40x = 19,545,885,784.32
  5. Step 5: Solve for x
    x = 19,545,885,784.32/178,402.40
  6. Step 6: Final answer
    x = 109,560.67

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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.