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Finding the Fourth Proportional to 178,139.76, 267,223.68 and 59,810.64

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Solution

The fourth proportional to 178,139.76, 267,223.68 and 59,810.64 is: 89,720.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,139.76 : 267,223.68 = 59,810.64 : x
  2. Step 2: Convert to fraction form
    178,139.76/267,223.68 = 59,810.64/x
  3. Step 3: Cross multiply
    178,139.76x = 267,223.68 × 59,810.64
  4. Step 4: Simplify right side
    178,139.76x = 15,982,819,323.96
  5. Step 5: Solve for x
    x = 15,982,819,323.96/178,139.76
  6. Step 6: Final answer
    x = 89,720.67

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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.