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Finding the Fourth Proportional to 249,626.79, 344,484.63 and 136,449.54

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Solution

The fourth proportional to 249,626.79, 344,484.63 and 136,449.54 is: 188,300.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,626.79 : 344,484.63 = 136,449.54 : x
  2. Step 2: Convert to fraction form
    249,626.79/344,484.63 = 136,449.54/x
  3. Step 3: Cross multiply
    249,626.79x = 344,484.63 × 136,449.54
  4. Step 4: Simplify right side
    249,626.79x = 47,004,769,300.57
  5. Step 5: Solve for x
    x = 47,004,769,300.57/249,626.79
  6. Step 6: Final answer
    x = 188,300.18

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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.