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Finding the Fourth Proportional to 135,077.40, 202,397.40 and 127,204.20

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Solution

The fourth proportional to 135,077.40, 202,397.40 and 127,204.20 is: 190,600.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,077.40 : 202,397.40 = 127,204.20 : x
  2. Step 2: Convert to fraction form
    135,077.40/202,397.40 = 127,204.20/x
  3. Step 3: Cross multiply
    135,077.40x = 202,397.40 × 127,204.20
  4. Step 4: Simplify right side
    135,077.40x = 25,745,799,349.08
  5. Step 5: Solve for x
    x = 25,745,799,349.08/135,077.40
  6. Step 6: Final answer
    x = 190,600.35

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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.