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Finding the Fourth Proportional to 243,873.70, 365,810.55 and 111,013.45

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Solution

The fourth proportional to 243,873.70, 365,810.55 and 111,013.45 is: 166,520.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,873.70 : 365,810.55 = 111,013.45 : x
  2. Step 2: Convert to fraction form
    243,873.70/365,810.55 = 111,013.45/x
  3. Step 3: Cross multiply
    243,873.70x = 365,810.55 × 111,013.45
  4. Step 4: Simplify right side
    243,873.70x = 40,609,891,201.90
  5. Step 5: Solve for x
    x = 40,609,891,201.90/243,873.70
  6. Step 6: Final answer
    x = 166,520.18

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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.