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Finding the Fourth Proportional to 441,330.77, 661,996.16 and 125,779.48

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Solution

The fourth proportional to 441,330.77, 661,996.16 and 125,779.48 is: 188,669.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,330.77 : 661,996.16 = 125,779.48 : x
  2. Step 2: Convert to fraction form
    441,330.77/661,996.16 = 125,779.48/x
  3. Step 3: Cross multiply
    441,330.77x = 661,996.16 × 125,779.48
  4. Step 4: Simplify right side
    441,330.77x = 83,265,530,482.91
  5. Step 5: Solve for x
    x = 83,265,530,482.91/441,330.77
  6. Step 6: Final answer
    x = 188,669.22

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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.