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Finding the Fourth Proportional to 181,148.93, 249,973.93 and 100,576.43

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Solution

The fourth proportional to 181,148.93, 249,973.93 and 100,576.43 is: 138,789.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,148.93 : 249,973.93 = 100,576.43 : x
  2. Step 2: Convert to fraction form
    181,148.93/249,973.93 = 100,576.43/x
  3. Step 3: Cross multiply
    181,148.93x = 249,973.93 × 100,576.43
  4. Step 4: Simplify right side
    181,148.93x = 25,141,485,472.47
  5. Step 5: Solve for x
    x = 25,141,485,472.47/181,148.93
  6. Step 6: Final answer
    x = 138,789.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.