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Finding the Fourth Proportional to 324,668.10, 487,002.15 and 88,010.40

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Solution

The fourth proportional to 324,668.10, 487,002.15 and 88,010.40 is: 132,015.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,668.10 : 487,002.15 = 88,010.40 : x
  2. Step 2: Convert to fraction form
    324,668.10/487,002.15 = 88,010.40/x
  3. Step 3: Cross multiply
    324,668.10x = 487,002.15 × 88,010.40
  4. Step 4: Simplify right side
    324,668.10x = 42,861,254,022.36
  5. Step 5: Solve for x
    x = 42,861,254,022.36/324,668.10
  6. Step 6: Final answer
    x = 132,015.60

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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.