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Finding the Fourth Proportional to 203,957.12, 305,904.06 and 104,191.04

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Solution

The fourth proportional to 203,957.12, 305,904.06 and 104,191.04 is: 156,270.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,957.12 : 305,904.06 = 104,191.04 : x
  2. Step 2: Convert to fraction form
    203,957.12/305,904.06 = 104,191.04/x
  3. Step 3: Cross multiply
    203,957.12x = 305,904.06 × 104,191.04
  4. Step 4: Simplify right side
    203,957.12x = 31,872,460,622.10
  5. Step 5: Solve for x
    x = 31,872,460,622.10/203,957.12
  6. Step 6: Final answer
    x = 156,270.40

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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.