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Finding the Fourth Proportional to 631,375.76, 947,060.90 and 158,059.75

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Solution

The fourth proportional to 631,375.76, 947,060.90 and 158,059.75 is: 237,088.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,375.76 : 947,060.90 = 158,059.75 : x
  2. Step 2: Convert to fraction form
    631,375.76/947,060.90 = 158,059.75/x
  3. Step 3: Cross multiply
    631,375.76x = 947,060.90 × 158,059.75
  4. Step 4: Simplify right side
    631,375.76x = 149,692,212,739.85
  5. Step 5: Solve for x
    x = 149,692,212,739.85/631,375.76
  6. Step 6: Final answer
    x = 237,088.94

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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.