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Finding the Fourth Proportional to 256,291.88, 353,683.49 and 141,568.47

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Solution

The fourth proportional to 256,291.88, 353,683.49 and 141,568.47 is: 195,364.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,291.88 : 353,683.49 = 141,568.47 : x
  2. Step 2: Convert to fraction form
    256,291.88/353,683.49 = 141,568.47/x
  3. Step 3: Cross multiply
    256,291.88x = 353,683.49 × 141,568.47
  4. Step 4: Simplify right side
    256,291.88x = 50,070,429,835.72
  5. Step 5: Solve for x
    x = 50,070,429,835.72/256,291.88
  6. Step 6: Final answer
    x = 195,364.87

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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.