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Finding the Fourth Proportional to 256,483.74, 353,936.58 and 141,756.48

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Solution

The fourth proportional to 256,483.74, 353,936.58 and 141,756.48 is: 195,617.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,483.74 : 353,936.58 = 141,756.48 : x
  2. Step 2: Convert to fraction form
    256,483.74/353,936.58 = 141,756.48/x
  3. Step 3: Cross multiply
    256,483.74x = 353,936.58 × 141,756.48
  4. Step 4: Simplify right side
    256,483.74x = 50,172,803,724.04
  5. Step 5: Solve for x
    x = 50,172,803,724.04/256,483.74
  6. Step 6: Final answer
    x = 195,617.87

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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.