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Finding the Fourth Proportional to 571,001.63, 856,581.11 and 191,951.79

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Solution

The fourth proportional to 571,001.63, 856,581.11 and 191,951.79 is: 287,954.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,001.63 : 856,581.11 = 191,951.79 : x
  2. Step 2: Convert to fraction form
    571,001.63/856,581.11 = 191,951.79/x
  3. Step 3: Cross multiply
    571,001.63x = 856,581.11 × 191,951.79
  4. Step 4: Simplify right side
    571,001.63x = 164,422,276,384.93
  5. Step 5: Solve for x
    x = 164,422,276,384.93/571,001.63
  6. Step 6: Final answer
    x = 287,954.13

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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.