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Finding the Fourth Proportional to 116,784.87, 161,163.12 and 63,069.89

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Solution

The fourth proportional to 116,784.87, 161,163.12 and 63,069.89 is: 87,036.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,784.87 : 161,163.12 = 63,069.89 : x
  2. Step 2: Convert to fraction form
    116,784.87/161,163.12 = 63,069.89/x
  3. Step 3: Cross multiply
    116,784.87x = 161,163.12 × 63,069.89
  4. Step 4: Simplify right side
    116,784.87x = 10,164,539,444.64
  5. Step 5: Solve for x
    x = 10,164,539,444.64/116,784.87
  6. Step 6: Final answer
    x = 87,036.44

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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.