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Finding the Fourth Proportional to 180,802.73, 271,141.19 and 74,156.40

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Solution

The fourth proportional to 180,802.73, 271,141.19 and 74,156.40 is: 111,208.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,802.73 : 271,141.19 = 74,156.40 : x
  2. Step 2: Convert to fraction form
    180,802.73/271,141.19 = 74,156.40/x
  3. Step 3: Cross multiply
    180,802.73x = 271,141.19 × 74,156.40
  4. Step 4: Simplify right side
    180,802.73x = 20,106,854,171.33
  5. Step 5: Solve for x
    x = 20,106,854,171.33/180,802.73
  6. Step 6: Final answer
    x = 111,208.80

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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.