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Finding the Fourth Proportional to 249,508.52, 344,317.74 and 136,328.84

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Solution

The fourth proportional to 249,508.52, 344,317.74 and 136,328.84 is: 188,131.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,508.52 : 344,317.74 = 136,328.84 : x
  2. Step 2: Convert to fraction form
    249,508.52/344,317.74 = 136,328.84/x
  3. Step 3: Cross multiply
    249,508.52x = 344,317.74 × 136,328.84
  4. Step 4: Simplify right side
    249,508.52x = 46,940,438,085.62
  5. Step 5: Solve for x
    x = 46,940,438,085.62/249,508.52
  6. Step 6: Final answer
    x = 188,131.60

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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.