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Finding the Fourth Proportional to 113,792.53, 170,688.84 and 38,913.37

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Solution

The fourth proportional to 113,792.53, 170,688.84 and 38,913.37 is: 58,370.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,792.53 : 170,688.84 = 38,913.37 : x
  2. Step 2: Convert to fraction form
    113,792.53/170,688.84 = 38,913.37/x
  3. Step 3: Cross multiply
    113,792.53x = 170,688.84 × 38,913.37
  4. Step 4: Simplify right side
    113,792.53x = 6,642,077,791.22
  5. Step 5: Solve for x
    x = 6,642,077,791.22/113,792.53
  6. Step 6: Final answer
    x = 58,370.07

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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.