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Finding the Fourth Proportional to 180,924.93, 249,640.40 and 109,308.92

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Solution

The fourth proportional to 180,924.93, 249,640.40 and 109,308.92 is: 150,824.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,924.93 : 249,640.40 = 109,308.92 : x
  2. Step 2: Convert to fraction form
    180,924.93/249,640.40 = 109,308.92/x
  3. Step 3: Cross multiply
    180,924.93x = 249,640.40 × 109,308.92
  4. Step 4: Simplify right side
    180,924.93x = 27,287,920,717.62
  5. Step 5: Solve for x
    x = 27,287,920,717.62/180,924.93
  6. Step 6: Final answer
    x = 150,824.55

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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.