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Finding the Fourth Proportional to 159,632.10, 220,109.40 and 119,277.90

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Solution

The fourth proportional to 159,632.10, 220,109.40 and 119,277.90 is: 164,466.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,632.10 : 220,109.40 = 119,277.90 : x
  2. Step 2: Convert to fraction form
    159,632.10/220,109.40 = 119,277.90/x
  3. Step 3: Cross multiply
    159,632.10x = 220,109.40 × 119,277.90
  4. Step 4: Simplify right side
    159,632.10x = 26,254,187,002.26
  5. Step 5: Solve for x
    x = 26,254,187,002.26/159,632.10
  6. Step 6: Final answer
    x = 164,466.84

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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.