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Finding the Fourth Proportional to 52,590.65, 78,827.53 and 40,069.39

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Solution

The fourth proportional to 52,590.65, 78,827.53 and 40,069.39 is: 60,059.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,590.65 : 78,827.53 = 40,069.39 : x
  2. Step 2: Convert to fraction form
    52,590.65/78,827.53 = 40,069.39/x
  3. Step 3: Cross multiply
    52,590.65x = 78,827.53 × 40,069.39
  4. Step 4: Simplify right side
    52,590.65x = 3,158,570,858.99
  5. Step 5: Solve for x
    x = 3,158,570,858.99/52,590.65
  6. Step 6: Final answer
    x = 60,059.56

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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.