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Finding the Fourth Proportional to 127,763.53, 191,500.00 and 77,733.37

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Solution

The fourth proportional to 127,763.53, 191,500.00 and 77,733.37 is: 116,511.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,763.53 : 191,500.00 = 77,733.37 : x
  2. Step 2: Convert to fraction form
    127,763.53/191,500.00 = 77,733.37/x
  3. Step 3: Cross multiply
    127,763.53x = 191,500.00 × 77,733.37
  4. Step 4: Simplify right side
    127,763.53x = 14,885,940,400.04
  5. Step 5: Solve for x
    x = 14,885,940,400.04/127,763.53
  6. Step 6: Final answer
    x = 116,511.66

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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.