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Finding the Fourth Proportional to 325,526.70, 488,604.54 and 157,165.28

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Solution

The fourth proportional to 325,526.70, 488,604.54 and 157,165.28 is: 235,899.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,526.70 : 488,604.54 = 157,165.28 : x
  2. Step 2: Convert to fraction form
    325,526.70/488,604.54 = 157,165.28/x
  3. Step 3: Cross multiply
    325,526.70x = 488,604.54 × 157,165.28
  4. Step 4: Simplify right side
    325,526.70x = 76,791,668,432.93
  5. Step 5: Solve for x
    x = 76,791,668,432.93/325,526.70
  6. Step 6: Final answer
    x = 235,899.76

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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.