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Finding the Fourth Proportional to 220,998.60, 304,967.46 and 125,492.68

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Solution

The fourth proportional to 220,998.60, 304,967.46 and 125,492.68 is: 173,173.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,998.60 : 304,967.46 = 125,492.68 : x
  2. Step 2: Convert to fraction form
    220,998.60/304,967.46 = 125,492.68/x
  3. Step 3: Cross multiply
    220,998.60x = 304,967.46 × 125,492.68
  4. Step 4: Simplify right side
    220,998.60x = 38,271,183,868.19
  5. Step 5: Solve for x
    x = 38,271,183,868.19/220,998.60
  6. Step 6: Final answer
    x = 173,173.87

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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.