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Finding the Fourth Proportional to 192,643, 265,847.34 and 125,575

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Solution

The fourth proportional to 192,643, 265,847.34 and 125,575 is: 173,293.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,643 : 265,847.34 = 125,575 : x
  2. Step 2: Convert to fraction form
    192,643/265,847.34 = 125,575/x
  3. Step 3: Cross multiply
    192,643x = 265,847.34 × 125,575
  4. Step 4: Simplify right side
    192,643x = 33,383,779,720.50
  5. Step 5: Solve for x
    x = 33,383,779,720.50/192,643
  6. Step 6: Final answer
    x = 173,293.50

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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.