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Finding the Fourth Proportional to 101,198.91, 151,595.33 and 92,931.51

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Solution

The fourth proportional to 101,198.91, 151,595.33 and 92,931.51 is: 139,210.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,198.91 : 151,595.33 = 92,931.51 : x
  2. Step 2: Convert to fraction form
    101,198.91/151,595.33 = 92,931.51/x
  3. Step 3: Cross multiply
    101,198.91x = 151,595.33 × 92,931.51
  4. Step 4: Simplify right side
    101,198.91x = 14,087,982,461.19
  5. Step 5: Solve for x
    x = 14,087,982,461.19/101,198.91
  6. Step 6: Final answer
    x = 139,210.81

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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.