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Finding the Fourth Proportional to 52,442.90, 78,549.15 and 51,290.90

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Solution

The fourth proportional to 52,442.90, 78,549.15 and 51,290.90 is: 76,823.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,442.90 : 78,549.15 = 51,290.90 : x
  2. Step 2: Convert to fraction form
    52,442.90/78,549.15 = 51,290.90/x
  3. Step 3: Cross multiply
    52,442.90x = 78,549.15 × 51,290.90
  4. Step 4: Simplify right side
    52,442.90x = 4,028,856,597.74
  5. Step 5: Solve for x
    x = 4,028,856,597.74/52,442.90
  6. Step 6: Final answer
    x = 76,823.68

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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.