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Finding the Fourth Proportional to 256,956.34, 354,575.88 and 153,570.10

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Solution

The fourth proportional to 256,956.34, 354,575.88 and 153,570.10 is: 211,912.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,956.34 : 354,575.88 = 153,570.10 : x
  2. Step 2: Convert to fraction form
    256,956.34/354,575.88 = 153,570.10/x
  3. Step 3: Cross multiply
    256,956.34x = 354,575.88 × 153,570.10
  4. Step 4: Simplify right side
    256,956.34x = 54,452,253,349.19
  5. Step 5: Solve for x
    x = 54,452,253,349.19/256,956.34
  6. Step 6: Final answer
    x = 211,912.47

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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.