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Finding the Fourth Proportional to 248,875.72, 343,439.94 and 141,443.88

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Solution

The fourth proportional to 248,875.72, 343,439.94 and 141,443.88 is: 195,187.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,875.72 : 343,439.94 = 141,443.88 : x
  2. Step 2: Convert to fraction form
    248,875.72/343,439.94 = 141,443.88/x
  3. Step 3: Cross multiply
    248,875.72x = 343,439.94 × 141,443.88
  4. Step 4: Simplify right side
    248,875.72x = 48,577,477,660.57
  5. Step 5: Solve for x
    x = 48,577,477,660.57/248,875.72
  6. Step 6: Final answer
    x = 195,187.69

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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.