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Finding the Fourth Proportional to 148,048.10, 221,744.10 and 121,804.10

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Solution

The fourth proportional to 148,048.10, 221,744.10 and 121,804.10 is: 182,436.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,048.10 : 221,744.10 = 121,804.10 : x
  2. Step 2: Convert to fraction form
    148,048.10/221,744.10 = 121,804.10/x
  3. Step 3: Cross multiply
    148,048.10x = 221,744.10 × 121,804.10
  4. Step 4: Simplify right side
    148,048.10x = 27,009,340,530.81
  5. Step 5: Solve for x
    x = 27,009,340,530.81/148,048.10
  6. Step 6: Final answer
    x = 182,436.25

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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.