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Finding the Fourth Proportional to 229,779.70, 344,680.35 and 72,013.30

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Solution

The fourth proportional to 229,779.70, 344,680.35 and 72,013.30 is: 108,023.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,779.70 : 344,680.35 = 72,013.30 : x
  2. Step 2: Convert to fraction form
    229,779.70/344,680.35 = 72,013.30/x
  3. Step 3: Cross multiply
    229,779.70x = 344,680.35 × 72,013.30
  4. Step 4: Simplify right side
    229,779.70x = 24,821,569,448.66
  5. Step 5: Solve for x
    x = 24,821,569,448.66/229,779.70
  6. Step 6: Final answer
    x = 108,023.33

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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.