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Finding the Fourth Proportional to 181,092.64, 249,919.18 and 100,521.50

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Solution

The fourth proportional to 181,092.64, 249,919.18 and 100,521.50 is: 138,725.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,092.64 : 249,919.18 = 100,521.50 : x
  2. Step 2: Convert to fraction form
    181,092.64/249,919.18 = 100,521.50/x
  3. Step 3: Cross multiply
    181,092.64x = 249,919.18 × 100,521.50
  4. Step 4: Simplify right side
    181,092.64x = 25,122,250,852.37
  5. Step 5: Solve for x
    x = 25,122,250,852.37/181,092.64
  6. Step 6: Final answer
    x = 138,725.97

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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.