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Finding the Fourth Proportional to 180,976.88, 249,759.91 and 104,499.20

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Solution

The fourth proportional to 180,976.88, 249,759.91 and 104,499.20 is: 144,215.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,976.88 : 249,759.91 = 104,499.20 : x
  2. Step 2: Convert to fraction form
    180,976.88/249,759.91 = 104,499.20/x
  3. Step 3: Cross multiply
    180,976.88x = 249,759.91 × 104,499.20
  4. Step 4: Simplify right side
    180,976.88x = 26,099,709,549.39
  5. Step 5: Solve for x
    x = 26,099,709,549.39/180,976.88
  6. Step 6: Final answer
    x = 144,215.71

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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.