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Finding the Fourth Proportional to 231,479.32, 346,822.14 and 155,435.32

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Solution

The fourth proportional to 231,479.32, 346,822.14 and 155,435.32 is: 232,886.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,479.32 : 346,822.14 = 155,435.32 : x
  2. Step 2: Convert to fraction form
    231,479.32/346,822.14 = 155,435.32/x
  3. Step 3: Cross multiply
    231,479.32x = 346,822.14 × 155,435.32
  4. Step 4: Simplify right side
    231,479.32x = 53,908,410,313.98
  5. Step 5: Solve for x
    x = 53,908,410,313.98/231,479.32
  6. Step 6: Final answer
    x = 232,886.51

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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.