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Finding the Fourth Proportional to 219,010.60, 328,515.90 and 151,359.40

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Solution

The fourth proportional to 219,010.60, 328,515.90 and 151,359.40 is: 227,039.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,010.60 : 328,515.90 = 151,359.40 : x
  2. Step 2: Convert to fraction form
    219,010.60/328,515.90 = 151,359.40/x
  3. Step 3: Cross multiply
    219,010.60x = 328,515.90 × 151,359.40
  4. Step 4: Simplify right side
    219,010.60x = 49,723,969,514.46
  5. Step 5: Solve for x
    x = 49,723,969,514.46/219,010.60
  6. Step 6: Final answer
    x = 227,039.10

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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.