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Finding the Fourth Proportional to 249,443.69, 344,232.23 and 134,722.40

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Solution

The fourth proportional to 249,443.69, 344,232.23 and 134,722.40 is: 185,916.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,443.69 : 344,232.23 = 134,722.40 : x
  2. Step 2: Convert to fraction form
    249,443.69/344,232.23 = 134,722.40/x
  3. Step 3: Cross multiply
    249,443.69x = 344,232.23 × 134,722.40
  4. Step 4: Simplify right side
    249,443.69x = 46,375,789,788.18
  5. Step 5: Solve for x
    x = 46,375,789,788.18/249,443.69
  6. Step 6: Final answer
    x = 185,916.87

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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.