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Finding the Fourth Proportional to 264,225.48, 396,379.53 and 86,692.11

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Solution

The fourth proportional to 264,225.48, 396,379.53 and 86,692.11 is: 130,051.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,225.48 : 396,379.53 = 86,692.11 : x
  2. Step 2: Convert to fraction form
    264,225.48/396,379.53 = 86,692.11/x
  3. Step 3: Cross multiply
    264,225.48x = 396,379.53 × 86,692.11
  4. Step 4: Simplify right side
    264,225.48x = 34,362,977,816.51
  5. Step 5: Solve for x
    x = 34,362,977,816.51/264,225.48
  6. Step 6: Final answer
    x = 130,051.72

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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.