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Finding the Fourth Proportional to 86,575.44, 119,476.68 and 53,022.48

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Solution

The fourth proportional to 86,575.44, 119,476.68 and 53,022.48 is: 73,172.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,575.44 : 119,476.68 = 53,022.48 : x
  2. Step 2: Convert to fraction form
    86,575.44/119,476.68 = 53,022.48/x
  3. Step 3: Cross multiply
    86,575.44x = 119,476.68 × 53,022.48
  4. Step 4: Simplify right side
    86,575.44x = 6,334,949,875.77
  5. Step 5: Solve for x
    x = 6,334,949,875.77/86,575.44
  6. Step 6: Final answer
    x = 73,172.60

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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.