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Finding the Fourth Proportional to 269,007.98, 403,417.67 and 79,417.76

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Solution

The fourth proportional to 269,007.98, 403,417.67 and 79,417.76 is: 119,098.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,007.98 : 403,417.67 = 79,417.76 : x
  2. Step 2: Convert to fraction form
    269,007.98/403,417.67 = 79,417.76/x
  3. Step 3: Cross multiply
    269,007.98x = 403,417.67 × 79,417.76
  4. Step 4: Simplify right side
    269,007.98x = 32,038,525,281.64
  5. Step 5: Solve for x
    x = 32,038,525,281.64/269,007.98
  6. Step 6: Final answer
    x = 119,098.79

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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.