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Finding the Fourth Proportional to 249,846.82, 344,788.60 and 136,672

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Solution

The fourth proportional to 249,846.82, 344,788.60 and 136,672 is: 188,607.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,846.82 : 344,788.60 = 136,672 : x
  2. Step 2: Convert to fraction form
    249,846.82/344,788.60 = 136,672/x
  3. Step 3: Cross multiply
    249,846.82x = 344,788.60 × 136,672
  4. Step 4: Simplify right side
    249,846.82x = 47,122,947,539.20
  5. Step 5: Solve for x
    x = 47,122,947,539.20/249,846.82
  6. Step 6: Final answer
    x = 188,607.35

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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.