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Finding the Fourth Proportional to 186,329.40, 279,468.90 and 74,092.20

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Solution

The fourth proportional to 186,329.40, 279,468.90 and 74,092.20 is: 111,128.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,329.40 : 279,468.90 = 74,092.20 : x
  2. Step 2: Convert to fraction form
    186,329.40/279,468.90 = 74,092.20/x
  3. Step 3: Cross multiply
    186,329.40x = 279,468.90 × 74,092.20
  4. Step 4: Simplify right side
    186,329.40x = 20,706,465,632.58
  5. Step 5: Solve for x
    x = 20,706,465,632.58/186,329.40
  6. Step 6: Final answer
    x = 111,128.28

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1.5x scale

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.