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Finding the Fourth Proportional to 249,638.96, 344,501.78 and 134,917.26

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Solution

The fourth proportional to 249,638.96, 344,501.78 and 134,917.26 is: 186,185.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,638.96 : 344,501.78 = 134,917.26 : x
  2. Step 2: Convert to fraction form
    249,638.96/344,501.78 = 134,917.26/x
  3. Step 3: Cross multiply
    249,638.96x = 344,501.78 × 134,917.26
  4. Step 4: Simplify right side
    249,638.96x = 46,479,235,548.14
  5. Step 5: Solve for x
    x = 46,479,235,548.14/249,638.96
  6. Step 6: Final answer
    x = 186,185.83

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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.