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Finding the Fourth Proportional to 133,030.58, 183,586.49 and 75,668.42

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Solution

The fourth proportional to 133,030.58, 183,586.49 and 75,668.42 is: 104,424.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,030.58 : 183,586.49 = 75,668.42 : x
  2. Step 2: Convert to fraction form
    133,030.58/183,586.49 = 75,668.42/x
  3. Step 3: Cross multiply
    133,030.58x = 183,586.49 × 75,668.42
  4. Step 4: Simplify right side
    133,030.58x = 13,891,699,631.65
  5. Step 5: Solve for x
    x = 13,891,699,631.65/133,030.58
  6. Step 6: Final answer
    x = 104,424.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.