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Finding the Fourth Proportional to 78,893.73, 118,341.64 and 26,303.23

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Solution

The fourth proportional to 78,893.73, 118,341.64 and 26,303.23 is: 39,455.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,893.73 : 118,341.64 = 26,303.23 : x
  2. Step 2: Convert to fraction form
    78,893.73/118,341.64 = 26,303.23/x
  3. Step 3: Cross multiply
    78,893.73x = 118,341.64 × 26,303.23
  4. Step 4: Simplify right side
    78,893.73x = 3,112,767,375.50
  5. Step 5: Solve for x
    x = 3,112,767,375.50/78,893.73
  6. Step 6: Final answer
    x = 39,455.19

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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.