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Finding the Fourth Proportional to 256,734.66, 354,266.57 and 141,995.07

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Solution

The fourth proportional to 256,734.66, 354,266.57 and 141,995.07 is: 195,938.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,734.66 : 354,266.57 = 141,995.07 : x
  2. Step 2: Convert to fraction form
    256,734.66/354,266.57 = 141,995.07/x
  3. Step 3: Cross multiply
    256,734.66x = 354,266.57 × 141,995.07
  4. Step 4: Simplify right side
    256,734.66x = 50,304,106,405.81
  5. Step 5: Solve for x
    x = 50,304,106,405.81/256,734.66
  6. Step 6: Final answer
    x = 195,938.12

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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.