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Finding the Fourth Proportional to 170,692.52, 256,112.55 and 65,486.88

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Solution

The fourth proportional to 170,692.52, 256,112.55 and 65,486.88 is: 98,258.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,692.52 : 256,112.55 = 65,486.88 : x
  2. Step 2: Convert to fraction form
    170,692.52/256,112.55 = 65,486.88/x
  3. Step 3: Cross multiply
    170,692.52x = 256,112.55 × 65,486.88
  4. Step 4: Simplify right side
    170,692.52x = 16,772,011,828.34
  5. Step 5: Solve for x
    x = 16,772,011,828.34/170,692.52
  6. Step 6: Final answer
    x = 98,258.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.