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Finding the Fourth Proportional to 197,876.28, 296,828.16 and 79,547.68

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Solution

The fourth proportional to 197,876.28, 296,828.16 and 79,547.68 is: 119,327.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,876.28 : 296,828.16 = 79,547.68 : x
  2. Step 2: Convert to fraction form
    197,876.28/296,828.16 = 79,547.68/x
  3. Step 3: Cross multiply
    197,876.28x = 296,828.16 × 79,547.68
  4. Step 4: Simplify right side
    197,876.28x = 23,611,991,486.67
  5. Step 5: Solve for x
    x = 23,611,991,486.67/197,876.28
  6. Step 6: Final answer
    x = 119,327.04

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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.