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Finding the Fourth Proportional to 374,345.57, 561,564.72 and 146,611.64

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Solution

The fourth proportional to 374,345.57, 561,564.72 and 146,611.64 is: 219,935.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,345.57 : 561,564.72 = 146,611.64 : x
  2. Step 2: Convert to fraction form
    374,345.57/561,564.72 = 146,611.64/x
  3. Step 3: Cross multiply
    374,345.57x = 561,564.72 × 146,611.64
  4. Step 4: Simplify right side
    374,345.57x = 82,331,921,757.52
  5. Step 5: Solve for x
    x = 82,331,921,757.52/374,345.57
  6. Step 6: Final answer
    x = 219,935.61

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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.