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Finding the Fourth Proportional to 256,732.66, 354,263.81 and 141,993.07

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Solution

The fourth proportional to 256,732.66, 354,263.81 and 141,993.07 is: 195,935.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,732.66 : 354,263.81 = 141,993.07 : x
  2. Step 2: Convert to fraction form
    256,732.66/354,263.81 = 141,993.07/x
  3. Step 3: Cross multiply
    256,732.66x = 354,263.81 × 141,993.07
  4. Step 4: Simplify right side
    256,732.66x = 50,303,005,971.80
  5. Step 5: Solve for x
    x = 50,303,005,971.80/256,732.66
  6. Step 6: Final answer
    x = 195,935.36

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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.