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Finding the Fourth Proportional to 171,018.92, 236,072.10 and 153,082.28

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Solution

The fourth proportional to 171,018.92, 236,072.10 and 153,082.28 is: 211,312.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,018.92 : 236,072.10 = 153,082.28 : x
  2. Step 2: Convert to fraction form
    171,018.92/236,072.10 = 153,082.28/x
  3. Step 3: Cross multiply
    171,018.92x = 236,072.10 × 153,082.28
  4. Step 4: Simplify right side
    171,018.92x = 36,138,455,312.39
  5. Step 5: Solve for x
    x = 36,138,455,312.39/171,018.92
  6. Step 6: Final answer
    x = 211,312.62

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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.