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Finding the Fourth Proportional to 78,898.93, 108,881.27 and 44,905.75

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Solution

The fourth proportional to 78,898.93, 108,881.27 and 44,905.75 is: 61,970.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,898.93 : 108,881.27 = 44,905.75 : x
  2. Step 2: Convert to fraction form
    78,898.93/108,881.27 = 44,905.75/x
  3. Step 3: Cross multiply
    78,898.93x = 108,881.27 × 44,905.75
  4. Step 4: Simplify right side
    78,898.93x = 4,889,395,090.30
  5. Step 5: Solve for x
    x = 4,889,395,090.30/78,898.93
  6. Step 6: Final answer
    x = 61,970.36

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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.