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Finding the Fourth Proportional to 52,396.90, 78,440.91 and 34,594.90

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Solution

The fourth proportional to 52,396.90, 78,440.91 and 34,594.90 is: 51,790.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,396.90 : 78,440.91 = 34,594.90 : x
  2. Step 2: Convert to fraction form
    52,396.90/78,440.91 = 34,594.90/x
  3. Step 3: Cross multiply
    52,396.90x = 78,440.91 × 34,594.90
  4. Step 4: Simplify right side
    52,396.90x = 2,713,655,437.36
  5. Step 5: Solve for x
    x = 2,713,655,437.36/52,396.90
  6. Step 6: Final answer
    x = 51,790.38

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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.