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Finding the Fourth Proportional to 74,262, 111,397.44 and 29,888.56

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Solution

The fourth proportional to 74,262, 111,397.44 and 29,888.56 is: 44,834.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,262 : 111,397.44 = 29,888.56 : x
  2. Step 2: Convert to fraction form
    74,262/111,397.44 = 29,888.56/x
  3. Step 3: Cross multiply
    74,262x = 111,397.44 × 29,888.56
  4. Step 4: Simplify right side
    74,262x = 3,329,509,069.29
  5. Step 5: Solve for x
    x = 3,329,509,069.29/74,262
  6. Step 6: Final answer
    x = 44,834.63

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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.