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Finding the Fourth Proportional to 171,857.29, 237,109.40 and 99,250.87

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Solution

The fourth proportional to 171,857.29, 237,109.40 and 99,250.87 is: 136,935.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,857.29 : 237,109.40 = 99,250.87 : x
  2. Step 2: Convert to fraction form
    171,857.29/237,109.40 = 99,250.87/x
  3. Step 3: Cross multiply
    171,857.29x = 237,109.40 × 99,250.87
  4. Step 4: Simplify right side
    171,857.29x = 23,533,313,518.34
  5. Step 5: Solve for x
    x = 23,533,313,518.34/171,857.29
  6. Step 6: Final answer
    x = 136,935.21

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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.