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Finding the Fourth Proportional to 294,390.50, 441,590.10 and 84,028.58

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Solution

The fourth proportional to 294,390.50, 441,590.10 and 84,028.58 is: 126,044.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,390.50 : 441,590.10 = 84,028.58 : x
  2. Step 2: Convert to fraction form
    294,390.50/441,590.10 = 84,028.58/x
  3. Step 3: Cross multiply
    294,390.50x = 441,590.10 × 84,028.58
  4. Step 4: Simplify right side
    294,390.50x = 37,106,189,045.06
  5. Step 5: Solve for x
    x = 37,106,189,045.06/294,390.50
  6. Step 6: Final answer
    x = 126,044.11

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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.