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Finding the Fourth Proportional to 360,072.30, 540,108.45 and 110,721.90

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Solution

The fourth proportional to 360,072.30, 540,108.45 and 110,721.90 is: 166,082.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,072.30 : 540,108.45 = 110,721.90 : x
  2. Step 2: Convert to fraction form
    360,072.30/540,108.45 = 110,721.90/x
  3. Step 3: Cross multiply
    360,072.30x = 540,108.45 × 110,721.90
  4. Step 4: Simplify right side
    360,072.30x = 59,801,833,790.06
  5. Step 5: Solve for x
    x = 59,801,833,790.06/360,072.30
  6. Step 6: Final answer
    x = 166,082.85

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1.5x scale

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.