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Finding the Fourth Proportional to 256,372.49, 353,801.16 and 141,658.52

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Solution

The fourth proportional to 256,372.49, 353,801.16 and 141,658.52 is: 195,492.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,372.49 : 353,801.16 = 141,658.52 : x
  2. Step 2: Convert to fraction form
    256,372.49/353,801.16 = 141,658.52/x
  3. Step 3: Cross multiply
    256,372.49x = 353,801.16 × 141,658.52
  4. Step 4: Simplify right side
    256,372.49x = 50,118,946,930.88
  5. Step 5: Solve for x
    x = 50,118,946,930.88/256,372.49
  6. Step 6: Final answer
    x = 195,492.69

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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.