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Finding the Fourth Proportional to 127,347.78, 190,730.76 and 60,834.96

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Solution

The fourth proportional to 127,347.78, 190,730.76 and 60,834.96 is: 91,113.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,347.78 : 190,730.76 = 60,834.96 : x
  2. Step 2: Convert to fraction form
    127,347.78/190,730.76 = 60,834.96/x
  3. Step 3: Cross multiply
    127,347.78x = 190,730.76 × 60,834.96
  4. Step 4: Simplify right side
    127,347.78x = 11,603,098,155.37
  5. Step 5: Solve for x
    x = 11,603,098,155.37/127,347.78
  6. Step 6: Final answer
    x = 91,113.47

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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.