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Finding the Fourth Proportional to 256,233.80, 353,595.30 and 143,054.12

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Solution

The fourth proportional to 256,233.80, 353,595.30 and 143,054.12 is: 197,410.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,233.80 : 353,595.30 = 143,054.12 : x
  2. Step 2: Convert to fraction form
    256,233.80/353,595.30 = 143,054.12/x
  3. Step 3: Cross multiply
    256,233.80x = 353,595.30 × 143,054.12
  4. Step 4: Simplify right side
    256,233.80x = 50,583,264,477.64
  5. Step 5: Solve for x
    x = 50,583,264,477.64/256,233.80
  6. Step 6: Final answer
    x = 197,410.59

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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.