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Finding the Fourth Proportional to 348,576.40, 522,961.80 and 148,992.40

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Solution

The fourth proportional to 348,576.40, 522,961.80 and 148,992.40 is: 223,530.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,576.40 : 522,961.80 = 148,992.40 : x
  2. Step 2: Convert to fraction form
    348,576.40/522,961.80 = 148,992.40/x
  3. Step 3: Cross multiply
    348,576.40x = 522,961.80 × 148,992.40
  4. Step 4: Simplify right side
    348,576.40x = 77,917,333,690.32
  5. Step 5: Solve for x
    x = 77,917,333,690.32/348,576.40
  6. Step 6: Final answer
    x = 223,530.15

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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.