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Finding the Fourth Proportional to 256,315.48, 353,720.70 and 141,593.80

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Solution

The fourth proportional to 256,315.48, 353,720.70 and 141,593.80 is: 195,402.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,315.48 : 353,720.70 = 141,593.80 : x
  2. Step 2: Convert to fraction form
    256,315.48/353,720.70 = 141,593.80/x
  3. Step 3: Cross multiply
    256,315.48x = 353,720.70 × 141,593.80
  4. Step 4: Simplify right side
    256,315.48x = 50,084,658,051.66
  5. Step 5: Solve for x
    x = 50,084,658,051.66/256,315.48
  6. Step 6: Final answer
    x = 195,402.39

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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.