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Finding the Third Proportional to 249,063.75 and 389,148.75

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Solution

The third proportional to 249,063.75 and 389,148.75 is: 608,024.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,063.75 : 389,148.75 = 389,148.75 : x
  2. Step 2: Convert to fraction form
    249,063.75/389,148.75 = 389,148.75/x
  3. Step 3: Cross multiply
    249,063.75x = 389,148.75 × 389,148.75
  4. Step 4: Simplify right side
    249,063.75x = 151,436,749,626.56
  5. Step 5: Solve for x
    x = 151,436,749,626.56/249,063.75
  6. Step 6: Final answer
    x = 608,024.05

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.