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Finding the Fourth Proportional to 180,613.92, 249,180.30 and 116,986.80

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Solution

The fourth proportional to 180,613.92, 249,180.30 and 116,986.80 is: 161,398.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,613.92 : 249,180.30 = 116,986.80 : x
  2. Step 2: Convert to fraction form
    180,613.92/249,180.30 = 116,986.80/x
  3. Step 3: Cross multiply
    180,613.92x = 249,180.30 × 116,986.80
  4. Step 4: Simplify right side
    180,613.92x = 29,150,805,920.04
  5. Step 5: Solve for x
    x = 29,150,805,920.04/180,613.92
  6. Step 6: Final answer
    x = 161,398.45

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1.5x scale

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.