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Finding the Fourth Proportional to 71,513.90, 107,237.48 and 26,533.46

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Solution

The fourth proportional to 71,513.90, 107,237.48 and 26,533.46 is: 39,787.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,513.90 : 107,237.48 = 26,533.46 : x
  2. Step 2: Convert to fraction form
    71,513.90/107,237.48 = 26,533.46/x
  3. Step 3: Cross multiply
    71,513.90x = 107,237.48 × 26,533.46
  4. Step 4: Simplify right side
    71,513.90x = 2,845,381,386.08
  5. Step 5: Solve for x
    x = 2,845,381,386.08/71,513.90
  6. Step 6: Final answer
    x = 39,787.81

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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.