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Finding the Fourth Proportional to 252,888.68, 348,993.44 and 139,718.72

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Solution

The fourth proportional to 252,888.68, 348,993.44 and 139,718.72 is: 192,815.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,888.68 : 348,993.44 = 139,718.72 : x
  2. Step 2: Convert to fraction form
    252,888.68/348,993.44 = 139,718.72/x
  3. Step 3: Cross multiply
    252,888.68x = 348,993.44 × 139,718.72
  4. Step 4: Simplify right side
    252,888.68x = 48,760,916,725.20
  5. Step 5: Solve for x
    x = 48,760,916,725.20/252,888.68
  6. Step 6: Final answer
    x = 192,815.74

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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.