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Finding the Fourth Proportional to 210,893.54, 316,340.30 and 92,565.90

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Solution

The fourth proportional to 210,893.54, 316,340.30 and 92,565.90 is: 138,848.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,893.54 : 316,340.30 = 92,565.90 : x
  2. Step 2: Convert to fraction form
    210,893.54/316,340.30 = 92,565.90/x
  3. Step 3: Cross multiply
    210,893.54x = 316,340.30 × 92,565.90
  4. Step 4: Simplify right side
    210,893.54x = 29,282,324,807.18
  5. Step 5: Solve for x
    x = 29,282,324,807.18/210,893.54
  6. Step 6: Final answer
    x = 138,848.85

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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.