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Finding the Fourth Proportional to 199,639.68, 299,502.54 and 57,483.97

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Solution

The fourth proportional to 199,639.68, 299,502.54 and 57,483.97 is: 86,238.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,639.68 : 299,502.54 = 57,483.97 : x
  2. Step 2: Convert to fraction form
    199,639.68/299,502.54 = 57,483.97/x
  3. Step 3: Cross multiply
    199,639.68x = 299,502.54 × 57,483.97
  4. Step 4: Simplify right side
    199,639.68x = 17,216,595,024.28
  5. Step 5: Solve for x
    x = 17,216,595,024.28/199,639.68
  6. Step 6: Final answer
    x = 86,238.34

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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.