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Finding the Fourth Proportional to 252,530.92, 348,491.46 and 139,360.60

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Solution

The fourth proportional to 252,530.92, 348,491.46 and 139,360.60 is: 192,316.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,530.92 : 348,491.46 = 139,360.60 : x
  2. Step 2: Convert to fraction form
    252,530.92/348,491.46 = 139,360.60/x
  3. Step 3: Cross multiply
    252,530.92x = 348,491.46 × 139,360.60
  4. Step 4: Simplify right side
    252,530.92x = 48,565,978,960.48
  5. Step 5: Solve for x
    x = 48,565,978,960.48/252,530.92
  6. Step 6: Final answer
    x = 192,316.96

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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.