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Finding the Fourth Proportional to 71,656.45, 98,913.45 and 47,774.41

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Solution

The fourth proportional to 71,656.45, 98,913.45 and 47,774.41 is: 65,947.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,656.45 : 98,913.45 = 47,774.41 : x
  2. Step 2: Convert to fraction form
    71,656.45/98,913.45 = 47,774.41/x
  3. Step 3: Cross multiply
    71,656.45x = 98,913.45 × 47,774.41
  4. Step 4: Simplify right side
    71,656.45x = 4,725,531,646.68
  5. Step 5: Solve for x
    x = 4,725,531,646.68/71,656.45
  6. Step 6: Final answer
    x = 65,947.05

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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.