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Finding the Fourth Proportional to 130,996.68, 196,330.68 and 56,028.84

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Solution

The fourth proportional to 130,996.68, 196,330.68 and 56,028.84 is: 83,972.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,996.68 : 196,330.68 = 56,028.84 : x
  2. Step 2: Convert to fraction form
    130,996.68/196,330.68 = 56,028.84/x
  3. Step 3: Cross multiply
    130,996.68x = 196,330.68 × 56,028.84
  4. Step 4: Simplify right side
    130,996.68x = 11,000,180,256.81
  5. Step 5: Solve for x
    x = 11,000,180,256.81/130,996.68
  6. Step 6: Final answer
    x = 83,972.97

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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.