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Finding the Fourth Proportional to 161,675.92, 223,119.54 and 90,055.84

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Solution

The fourth proportional to 161,675.92, 223,119.54 and 90,055.84 is: 124,280.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,675.92 : 223,119.54 = 90,055.84 : x
  2. Step 2: Convert to fraction form
    161,675.92/223,119.54 = 90,055.84/x
  3. Step 3: Cross multiply
    161,675.92x = 223,119.54 × 90,055.84
  4. Step 4: Simplify right side
    161,675.92x = 20,093,217,595.11
  5. Step 5: Solve for x
    x = 20,093,217,595.11/161,675.92
  6. Step 6: Final answer
    x = 124,280.83

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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.