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Finding the Fourth Proportional to 83,360.99, 115,051.52 and 47,562.64

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Solution

The fourth proportional to 83,360.99, 115,051.52 and 47,562.64 is: 65,644.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,360.99 : 115,051.52 = 47,562.64 : x
  2. Step 2: Convert to fraction form
    83,360.99/115,051.52 = 47,562.64/x
  3. Step 3: Cross multiply
    83,360.99x = 115,051.52 × 47,562.64
  4. Step 4: Simplify right side
    83,360.99x = 5,472,153,214.14
  5. Step 5: Solve for x
    x = 5,472,153,214.14/83,360.99
  6. Step 6: Final answer
    x = 65,644.05

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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.