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Finding the Fourth Proportional to 252,062.54, 347,852.76 and 138,885.38

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Solution

The fourth proportional to 252,062.54, 347,852.76 and 138,885.38 is: 191,665.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,062.54 : 347,852.76 = 138,885.38 : x
  2. Step 2: Convert to fraction form
    252,062.54/347,852.76 = 138,885.38/x
  3. Step 3: Cross multiply
    252,062.54x = 347,852.76 × 138,885.38
  4. Step 4: Simplify right side
    252,062.54x = 48,311,662,756.65
  5. Step 5: Solve for x
    x = 48,311,662,756.65/252,062.54
  6. Step 6: Final answer
    x = 191,665.38

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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.