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Finding the Fourth Proportional to 421,660.11, 632,049.51 and 184,803.15

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Solution

The fourth proportional to 421,660.11, 632,049.51 and 184,803.15 is: 277,011.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,660.11 : 632,049.51 = 184,803.15 : x
  2. Step 2: Convert to fraction form
    421,660.11/632,049.51 = 184,803.15/x
  3. Step 3: Cross multiply
    421,660.11x = 632,049.51 × 184,803.15
  4. Step 4: Simplify right side
    421,660.11x = 116,804,740,403.96
  5. Step 5: Solve for x
    x = 116,804,740,403.96/421,660.11
  6. Step 6: Final answer
    x = 277,011.60

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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.