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Finding the Fourth Proportional to 127,348.76, 190,773.50 and 73,928.69

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Solution

The fourth proportional to 127,348.76, 190,773.50 and 73,928.69 is: 110,748.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,348.76 : 190,773.50 = 73,928.69 : x
  2. Step 2: Convert to fraction form
    127,348.76/190,773.50 = 73,928.69/x
  3. Step 3: Cross multiply
    127,348.76x = 190,773.50 × 73,928.69
  4. Step 4: Simplify right side
    127,348.76x = 14,103,634,172.67
  5. Step 5: Solve for x
    x = 14,103,634,172.67/127,348.76
  6. Step 6: Final answer
    x = 110,748.11

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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.