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Finding the Fourth Proportional to 249,682.50, 344,570.36 and 136,512.54

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Solution

The fourth proportional to 249,682.50, 344,570.36 and 136,512.54 is: 188,391.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,682.50 : 344,570.36 = 136,512.54 : x
  2. Step 2: Convert to fraction form
    249,682.50/344,570.36 = 136,512.54/x
  3. Step 3: Cross multiply
    249,682.50x = 344,570.36 × 136,512.54
  4. Step 4: Simplify right side
    249,682.50x = 47,038,174,369.75
  5. Step 5: Solve for x
    x = 47,038,174,369.75/249,682.50
  6. Step 6: Final answer
    x = 188,391.96

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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.