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Finding the Fourth Proportional to 148,052.10, 221,750.10 and 121,808.10

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Solution

The fourth proportional to 148,052.10, 221,750.10 and 121,808.10 is: 182,442.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,052.10 : 221,750.10 = 121,808.10 : x
  2. Step 2: Convert to fraction form
    148,052.10/221,750.10 = 121,808.10/x
  3. Step 3: Cross multiply
    148,052.10x = 221,750.10 × 121,808.10
  4. Step 4: Simplify right side
    148,052.10x = 27,010,958,355.81
  5. Step 5: Solve for x
    x = 27,010,958,355.81/148,052.10
  6. Step 6: Final answer
    x = 182,442.25

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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.