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Finding the Fourth Proportional to 111,026.30, 166,211.40 and 97,904.30

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Solution

The fourth proportional to 111,026.30, 166,211.40 and 97,904.30 is: 146,567.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,026.30 : 166,211.40 = 97,904.30 : x
  2. Step 2: Convert to fraction form
    111,026.30/166,211.40 = 97,904.30/x
  3. Step 3: Cross multiply
    111,026.30x = 166,211.40 × 97,904.30
  4. Step 4: Simplify right side
    111,026.30x = 16,272,810,769.02
  5. Step 5: Solve for x
    x = 16,272,810,769.02/111,026.30
  6. Step 6: Final answer
    x = 146,567.17

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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.