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Finding the Fourth Proportional to 192,090, 265,118.90 and 114,570.62

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Solution

The fourth proportional to 192,090, 265,118.90 and 114,570.62 is: 158,128.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,090 : 265,118.90 = 114,570.62 : x
  2. Step 2: Convert to fraction form
    192,090/265,118.90 = 114,570.62/x
  3. Step 3: Cross multiply
    192,090x = 265,118.90 × 114,570.62
  4. Step 4: Simplify right side
    192,090x = 30,374,836,746.72
  5. Step 5: Solve for x
    x = 30,374,836,746.72/192,090
  6. Step 6: Final answer
    x = 158,128.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.