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Finding the Fourth Proportional to 181,099.81, 249,913.13 and 99,427.65

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Solution

The fourth proportional to 181,099.81, 249,913.13 and 99,427.65 is: 137,207.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,099.81 : 249,913.13 = 99,427.65 : x
  2. Step 2: Convert to fraction form
    181,099.81/249,913.13 = 99,427.65/x
  3. Step 3: Cross multiply
    181,099.81x = 249,913.13 × 99,427.65
  4. Step 4: Simplify right side
    181,099.81x = 24,848,275,220.04
  5. Step 5: Solve for x
    x = 24,848,275,220.04/181,099.81
  6. Step 6: Final answer
    x = 137,207.63

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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.