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Finding the Fourth Proportional to 72,076.52, 108,070.02 and 29,986.08

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Solution

The fourth proportional to 72,076.52, 108,070.02 and 29,986.08 is: 44,960.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,076.52 : 108,070.02 = 29,986.08 : x
  2. Step 2: Convert to fraction form
    72,076.52/108,070.02 = 29,986.08/x
  3. Step 3: Cross multiply
    72,076.52x = 108,070.02 × 29,986.08
  4. Step 4: Simplify right side
    72,076.52x = 3,240,596,265.32
  5. Step 5: Solve for x
    x = 3,240,596,265.32/72,076.52
  6. Step 6: Final answer
    x = 44,960.50

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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.