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Finding the Fourth Proportional to 83,445.93, 115,160.00 and 47,647.44

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Solution

The fourth proportional to 83,445.93, 115,160.00 and 47,647.44 is: 65,756.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,445.93 : 115,160.00 = 47,647.44 : x
  2. Step 2: Convert to fraction form
    83,445.93/115,160.00 = 47,647.44/x
  3. Step 3: Cross multiply
    83,445.93x = 115,160.00 × 47,647.44
  4. Step 4: Simplify right side
    83,445.93x = 5,487,078,952.16
  5. Step 5: Solve for x
    x = 5,487,078,952.16/83,445.93
  6. Step 6: Final answer
    x = 65,756.10

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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.