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Finding the Fourth Proportional to 127,650.89, 191,419.74 and 48,709.91

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Solution

The fourth proportional to 127,650.89, 191,419.74 and 48,709.91 is: 73,043.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,650.89 : 191,419.74 = 48,709.91 : x
  2. Step 2: Convert to fraction form
    127,650.89/191,419.74 = 48,709.91/x
  3. Step 3: Cross multiply
    127,650.89x = 191,419.74 × 48,709.91
  4. Step 4: Simplify right side
    127,650.89x = 9,324,038,307.62
  5. Step 5: Solve for x
    x = 9,324,038,307.62/127,650.89
  6. Step 6: Final answer
    x = 73,043.27

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1.5x scale

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.