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Finding the Fourth Proportional to 256,075.11, 353,383.72 and 141,353.82

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Solution

The fourth proportional to 256,075.11, 353,383.72 and 141,353.82 is: 195,068.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,075.11 : 353,383.72 = 141,353.82 : x
  2. Step 2: Convert to fraction form
    256,075.11/353,383.72 = 141,353.82/x
  3. Step 3: Cross multiply
    256,075.11x = 353,383.72 × 141,353.82
  4. Step 4: Simplify right side
    256,075.11x = 49,952,138,394.43
  5. Step 5: Solve for x
    x = 49,952,138,394.43/256,075.11
  6. Step 6: Final answer
    x = 195,068.31

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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.