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Finding the Fourth Proportional to 249,695.69, 344,581.49 and 136,518.44

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Solution

The fourth proportional to 249,695.69, 344,581.49 and 136,518.44 is: 188,396.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,695.69 : 344,581.49 = 136,518.44 : x
  2. Step 2: Convert to fraction form
    249,695.69/344,581.49 = 136,518.44/x
  3. Step 3: Cross multiply
    249,695.69x = 344,581.49 × 136,518.44
  4. Step 4: Simplify right side
    249,695.69x = 47,041,726,086.06
  5. Step 5: Solve for x
    x = 47,041,726,086.06/249,695.69
  6. Step 6: Final answer
    x = 188,396.23

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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.