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Finding the Fourth Proportional to 111,353.47, 167,030.21 and 96,315.90

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Solution

The fourth proportional to 111,353.47, 167,030.21 and 96,315.90 is: 144,473.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,353.47 : 167,030.21 = 96,315.90 : x
  2. Step 2: Convert to fraction form
    111,353.47/167,030.21 = 96,315.90/x
  3. Step 3: Cross multiply
    111,353.47x = 167,030.21 × 96,315.90
  4. Step 4: Simplify right side
    111,353.47x = 16,087,665,003.34
  5. Step 5: Solve for x
    x = 16,087,665,003.34/111,353.47
  6. Step 6: Final answer
    x = 144,473.85

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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.