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Finding the Fourth Proportional to 135,473.72, 203,341.78 and 65,402.24

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Solution

The fourth proportional to 135,473.72, 203,341.78 and 65,402.24 is: 98,166.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,473.72 : 203,341.78 = 65,402.24 : x
  2. Step 2: Convert to fraction form
    135,473.72/203,341.78 = 65,402.24/x
  3. Step 3: Cross multiply
    135,473.72x = 203,341.78 × 65,402.24
  4. Step 4: Simplify right side
    135,473.72x = 13,299,007,897.59
  5. Step 5: Solve for x
    x = 13,299,007,897.59/135,473.72
  6. Step 6: Final answer
    x = 98,166.70

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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.