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Finding the Fourth Proportional to 249,757.68, 344,668.32 and 136,578

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Solution

The fourth proportional to 249,757.68, 344,668.32 and 136,578 is: 188,479.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,757.68 : 344,668.32 = 136,578 : x
  2. Step 2: Convert to fraction form
    249,757.68/344,668.32 = 136,578/x
  3. Step 3: Cross multiply
    249,757.68x = 344,668.32 × 136,578
  4. Step 4: Simplify right side
    249,757.68x = 47,074,109,808.96
  5. Step 5: Solve for x
    x = 47,074,109,808.96/249,757.68
  6. Step 6: Final answer
    x = 188,479.13

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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.