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Finding the Fourth Proportional to 64,136.81, 88,511.54 and 35,842.50

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Solution

The fourth proportional to 64,136.81, 88,511.54 and 35,842.50 is: 49,464.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,136.81 : 88,511.54 = 35,842.50 : x
  2. Step 2: Convert to fraction form
    64,136.81/88,511.54 = 35,842.50/x
  3. Step 3: Cross multiply
    64,136.81x = 88,511.54 × 35,842.50
  4. Step 4: Simplify right side
    64,136.81x = 3,172,474,693.24
  5. Step 5: Solve for x
    x = 3,172,474,693.24/64,136.81
  6. Step 6: Final answer
    x = 49,464.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.