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Finding the Fourth Proportional to 249,534, 344,356.92 and 136,356.48

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Solution

The fourth proportional to 249,534, 344,356.92 and 136,356.48 is: 188,171.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,534 : 344,356.92 = 136,356.48 : x
  2. Step 2: Convert to fraction form
    249,534/344,356.92 = 136,356.48/x
  3. Step 3: Cross multiply
    249,534x = 344,356.92 × 136,356.48
  4. Step 4: Simplify right side
    249,534x = 46,955,297,474.84
  5. Step 5: Solve for x
    x = 46,955,297,474.84/249,534
  6. Step 6: Final answer
    x = 188,171.94

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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.