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Finding the Fourth Proportional to 249,767.60, 374,651.40 and 165,786.80

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Solution

The fourth proportional to 249,767.60, 374,651.40 and 165,786.80 is: 248,680.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,767.60 : 374,651.40 = 165,786.80 : x
  2. Step 2: Convert to fraction form
    249,767.60/374,651.40 = 165,786.80/x
  3. Step 3: Cross multiply
    249,767.60x = 374,651.40 × 165,786.80
  4. Step 4: Simplify right side
    249,767.60x = 62,112,256,721.52
  5. Step 5: Solve for x
    x = 62,112,256,721.52/249,767.60
  6. Step 6: Final answer
    x = 248,680.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.