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Finding the Fourth Proportional to 72,276.48, 108,425.05 and 22,360.84

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Solution

The fourth proportional to 72,276.48, 108,425.05 and 22,360.84 is: 33,544.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,276.48 : 108,425.05 = 22,360.84 : x
  2. Step 2: Convert to fraction form
    72,276.48/108,425.05 = 22,360.84/x
  3. Step 3: Cross multiply
    72,276.48x = 108,425.05 × 22,360.84
  4. Step 4: Simplify right side
    72,276.48x = 2,424,475,059.51
  5. Step 5: Solve for x
    x = 2,424,475,059.51/72,276.48
  6. Step 6: Final answer
    x = 33,544.45

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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.