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Finding the Fourth Proportional to 74,792.34, 112,119.26 and 39,246.30

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Solution

The fourth proportional to 74,792.34, 112,119.26 and 39,246.30 is: 58,833.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,792.34 : 112,119.26 = 39,246.30 : x
  2. Step 2: Convert to fraction form
    74,792.34/112,119.26 = 39,246.30/x
  3. Step 3: Cross multiply
    74,792.34x = 112,119.26 × 39,246.30
  4. Step 4: Simplify right side
    74,792.34x = 4,400,265,917.51
  5. Step 5: Solve for x
    x = 4,400,265,917.51/74,792.34
  6. Step 6: Final answer
    x = 58,833.11

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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.