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Finding the Fourth Proportional to 370,229.81, 555,234.67 and 156,994.57

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Solution

The fourth proportional to 370,229.81, 555,234.67 and 156,994.57 is: 235,445.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,229.81 : 555,234.67 = 156,994.57 : x
  2. Step 2: Convert to fraction form
    370,229.81/555,234.67 = 156,994.57/x
  3. Step 3: Cross multiply
    370,229.81x = 555,234.67 × 156,994.57
  4. Step 4: Simplify right side
    370,229.81x = 87,168,828,265.74
  5. Step 5: Solve for x
    x = 87,168,828,265.74/370,229.81
  6. Step 6: Final answer
    x = 235,445.19

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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.