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Finding the Fourth Proportional to 249,503.26, 344,316.92 and 136,326

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Solution

The fourth proportional to 249,503.26, 344,316.92 and 136,326 is: 188,131.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,503.26 : 344,316.92 = 136,326 : x
  2. Step 2: Convert to fraction form
    249,503.26/344,316.92 = 136,326/x
  3. Step 3: Cross multiply
    249,503.26x = 344,316.92 × 136,326
  4. Step 4: Simplify right side
    249,503.26x = 46,939,348,435.92
  5. Step 5: Solve for x
    x = 46,939,348,435.92/249,503.26
  6. Step 6: Final answer
    x = 188,131.20

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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.