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Finding the Fourth Proportional to 113,388, 170,089.20 and 34,508.04

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Solution

The fourth proportional to 113,388, 170,089.20 and 34,508.04 is: 51,764.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,388 : 170,089.20 = 34,508.04 : x
  2. Step 2: Convert to fraction form
    113,388/170,089.20 = 34,508.04/x
  3. Step 3: Cross multiply
    113,388x = 170,089.20 × 34,508.04
  4. Step 4: Simplify right side
    113,388x = 5,869,444,917.17
  5. Step 5: Solve for x
    x = 5,869,444,917.17/113,388
  6. Step 6: Final answer
    x = 51,764.25

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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.