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Finding the Fourth Proportional to 256,371.48, 353,799.78 and 141,657.52

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Solution

The fourth proportional to 256,371.48, 353,799.78 and 141,657.52 is: 195,491.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,371.48 : 353,799.78 = 141,657.52 : x
  2. Step 2: Convert to fraction form
    256,371.48/353,799.78 = 141,657.52/x
  3. Step 3: Cross multiply
    256,371.48x = 353,799.78 × 141,657.52
  4. Step 4: Simplify right side
    256,371.48x = 50,118,399,411.35
  5. Step 5: Solve for x
    x = 50,118,399,411.35/256,371.48
  6. Step 6: Final answer
    x = 195,491.32

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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.