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Finding the Fourth Proportional to 249,889.56, 344,847.18 and 136,712.28

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Solution

The fourth proportional to 249,889.56, 344,847.18 and 136,712.28 is: 188,662.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,889.56 : 344,847.18 = 136,712.28 : x
  2. Step 2: Convert to fraction form
    249,889.56/344,847.18 = 136,712.28/x
  3. Step 3: Cross multiply
    249,889.56x = 344,847.18 × 136,712.28
  4. Step 4: Simplify right side
    249,889.56x = 47,144,844,229.37
  5. Step 5: Solve for x
    x = 47,144,844,229.37/249,889.56
  6. Step 6: Final answer
    x = 188,662.72

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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.