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Finding the Fourth Proportional to 189,492.92, 261,493.32 and 104,608.16

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Solution

The fourth proportional to 189,492.92, 261,493.32 and 104,608.16 is: 144,355.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,492.92 : 261,493.32 = 104,608.16 : x
  2. Step 2: Convert to fraction form
    189,492.92/261,493.32 = 104,608.16/x
  3. Step 3: Cross multiply
    189,492.92x = 261,493.32 × 104,608.16
  4. Step 4: Simplify right side
    189,492.92x = 27,354,335,057.49
  5. Step 5: Solve for x
    x = 27,354,335,057.49/189,492.92
  6. Step 6: Final answer
    x = 144,355.45

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1.5x scale

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.