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Finding the Fourth Proportional to 256,041.04, 353,399.88 and 155,523.28

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Solution

The fourth proportional to 256,041.04, 353,399.88 and 155,523.28 is: 214,660.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,041.04 : 353,399.88 = 155,523.28 : x
  2. Step 2: Convert to fraction form
    256,041.04/353,399.88 = 155,523.28/x
  3. Step 3: Cross multiply
    256,041.04x = 353,399.88 × 155,523.28
  4. Step 4: Simplify right side
    256,041.04x = 54,961,908,489.21
  5. Step 5: Solve for x
    x = 54,961,908,489.21/256,041.04
  6. Step 6: Final answer
    x = 214,660.54

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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.