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Finding the Fourth Proportional to 252,250.50, 348,105.69 and 139,080.54

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Solution

The fourth proportional to 252,250.50, 348,105.69 and 139,080.54 is: 191,931.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,250.50 : 348,105.69 = 139,080.54 : x
  2. Step 2: Convert to fraction form
    252,250.50/348,105.69 = 139,080.54/x
  3. Step 3: Cross multiply
    252,250.50x = 348,105.69 × 139,080.54
  4. Step 4: Simplify right side
    252,250.50x = 48,414,727,342.27
  5. Step 5: Solve for x
    x = 48,414,727,342.27/252,250.50
  6. Step 6: Final answer
    x = 191,931.15

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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.