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Finding the Fourth Proportional to 180,532.99, 249,115.41 and 99,940.33

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Solution

The fourth proportional to 180,532.99, 249,115.41 and 99,940.33 is: 137,906.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,532.99 : 249,115.41 = 99,940.33 : x
  2. Step 2: Convert to fraction form
    180,532.99/249,115.41 = 99,940.33/x
  3. Step 3: Cross multiply
    180,532.99x = 249,115.41 × 99,940.33
  4. Step 4: Simplify right side
    180,532.99x = 24,896,676,283.49
  5. Step 5: Solve for x
    x = 24,896,676,283.49/180,532.99
  6. Step 6: Final answer
    x = 137,906.52

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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.