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Finding the Fourth Proportional to 553,450.30, 830,176.06 and 154,091.94

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Solution

The fourth proportional to 553,450.30, 830,176.06 and 154,091.94 is: 231,138.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,450.30 : 830,176.06 = 154,091.94 : x
  2. Step 2: Convert to fraction form
    553,450.30/830,176.06 = 154,091.94/x
  3. Step 3: Cross multiply
    553,450.30x = 830,176.06 × 154,091.94
  4. Step 4: Simplify right side
    553,450.30x = 127,923,439,626.96
  5. Step 5: Solve for x
    x = 127,923,439,626.96/553,450.30
  6. Step 6: Final answer
    x = 231,138.08

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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.