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Finding the Fourth Proportional to 452,842.29, 679,221.78 and 153,288.63

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Solution

The fourth proportional to 452,842.29, 679,221.78 and 153,288.63 is: 229,918.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,842.29 : 679,221.78 = 153,288.63 : x
  2. Step 2: Convert to fraction form
    452,842.29/679,221.78 = 153,288.63/x
  3. Step 3: Cross multiply
    452,842.29x = 679,221.78 × 153,288.63
  4. Step 4: Simplify right side
    452,842.29x = 104,116,976,122.36
  5. Step 5: Solve for x
    x = 104,116,976,122.36/452,842.29
  6. Step 6: Final answer
    x = 229,918.84

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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.