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Finding the Fourth Proportional to 371,126.60, 556,689.90 and 161,174.60

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Solution

The fourth proportional to 371,126.60, 556,689.90 and 161,174.60 is: 241,761.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,126.60 : 556,689.90 = 161,174.60 : x
  2. Step 2: Convert to fraction form
    371,126.60/556,689.90 = 161,174.60/x
  3. Step 3: Cross multiply
    371,126.60x = 556,689.90 × 161,174.60
  4. Step 4: Simplify right side
    371,126.60x = 89,724,271,956.54
  5. Step 5: Solve for x
    x = 89,724,271,956.54/371,126.60
  6. Step 6: Final answer
    x = 241,761.90

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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.