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Finding the Fourth Proportional to 256,012.48, 353,317.26 and 141,313.90

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Solution

The fourth proportional to 256,012.48, 353,317.26 and 141,313.90 is: 195,024.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,012.48 : 353,317.26 = 141,313.90 : x
  2. Step 2: Convert to fraction form
    256,012.48/353,317.26 = 141,313.90/x
  3. Step 3: Cross multiply
    256,012.48x = 353,317.26 × 141,313.90
  4. Step 4: Simplify right side
    256,012.48x = 49,928,639,947.91
  5. Step 5: Solve for x
    x = 49,928,639,947.91/256,012.48
  6. Step 6: Final answer
    x = 195,024.24

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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.