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Finding the Fourth Proportional to 252,718.56, 348,753.84 and 139,549.92

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Solution

The fourth proportional to 252,718.56, 348,753.84 and 139,549.92 is: 192,580.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,718.56 : 348,753.84 = 139,549.92 : x
  2. Step 2: Convert to fraction form
    252,718.56/348,753.84 = 139,549.92/x
  3. Step 3: Cross multiply
    252,718.56x = 348,753.84 × 139,549.92
  4. Step 4: Simplify right side
    252,718.56x = 48,668,570,471.69
  5. Step 5: Solve for x
    x = 48,668,570,471.69/252,718.56
  6. Step 6: Final answer
    x = 192,580.12

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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.