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Finding the Fourth Proportional to 127,946.55, 191,901.60 and 43,710.60

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Solution

The fourth proportional to 127,946.55, 191,901.60 and 43,710.60 is: 65,559.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,946.55 : 191,901.60 = 43,710.60 : x
  2. Step 2: Convert to fraction form
    127,946.55/191,901.60 = 43,710.60/x
  3. Step 3: Cross multiply
    127,946.55x = 191,901.60 × 43,710.60
  4. Step 4: Simplify right side
    127,946.55x = 8,388,134,076.96
  5. Step 5: Solve for x
    x = 8,388,134,076.96/127,946.55
  6. Step 6: Final answer
    x = 65,559.67

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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.