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Finding the Fourth Proportional to 171,362.16, 236,457.36 and 99,754.92

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Solution

The fourth proportional to 171,362.16, 236,457.36 and 99,754.92 is: 137,648.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,362.16 : 236,457.36 = 99,754.92 : x
  2. Step 2: Convert to fraction form
    171,362.16/236,457.36 = 99,754.92/x
  3. Step 3: Cross multiply
    171,362.16x = 236,457.36 × 99,754.92
  4. Step 4: Simplify right side
    171,362.16x = 23,587,785,030.21
  5. Step 5: Solve for x
    x = 23,587,785,030.21/171,362.16
  6. Step 6: Final answer
    x = 137,648.74

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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.