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Finding the Fourth Proportional to 72,590.80, 108,751.80 and 41,333.20

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Solution

The fourth proportional to 72,590.80, 108,751.80 and 41,333.20 is: 61,923.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,590.80 : 108,751.80 = 41,333.20 : x
  2. Step 2: Convert to fraction form
    72,590.80/108,751.80 = 41,333.20/x
  3. Step 3: Cross multiply
    72,590.80x = 108,751.80 × 41,333.20
  4. Step 4: Simplify right side
    72,590.80x = 4,495,059,899.76
  5. Step 5: Solve for x
    x = 4,495,059,899.76/72,590.80
  6. Step 6: Final answer
    x = 61,923.27

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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.