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Finding the Fourth Proportional to 256,036.80, 353,327.76 and 141,316.32

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Solution

The fourth proportional to 256,036.80, 353,327.76 and 141,316.32 is: 195,014.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,036.80 : 353,327.76 = 141,316.32 : x
  2. Step 2: Convert to fraction form
    256,036.80/353,327.76 = 141,316.32/x
  3. Step 3: Cross multiply
    256,036.80x = 353,327.76 × 141,316.32
  4. Step 4: Simplify right side
    256,036.80x = 49,930,978,797.04
  5. Step 5: Solve for x
    x = 49,930,978,797.04/256,036.80
  6. Step 6: Final answer
    x = 195,014.85

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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.