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Finding the Fourth Proportional to 52,590.36, 78,827.11 and 40,069.11

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Solution

The fourth proportional to 52,590.36, 78,827.11 and 40,069.11 is: 60,059.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,590.36 : 78,827.11 = 40,069.11 : x
  2. Step 2: Convert to fraction form
    52,590.36/78,827.11 = 40,069.11/x
  3. Step 3: Cross multiply
    52,590.36x = 78,827.11 × 40,069.11
  4. Step 4: Simplify right side
    52,590.36x = 3,158,531,840.94
  5. Step 5: Solve for x
    x = 3,158,531,840.94/52,590.36
  6. Step 6: Final answer
    x = 60,059.14

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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.