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Finding the Fourth Proportional to 76,893.17, 106,112.66 and 45,062.10

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Solution

The fourth proportional to 76,893.17, 106,112.66 and 45,062.10 is: 62,185.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,893.17 : 106,112.66 = 45,062.10 : x
  2. Step 2: Convert to fraction form
    76,893.17/106,112.66 = 45,062.10/x
  3. Step 3: Cross multiply
    76,893.17x = 106,112.66 × 45,062.10
  4. Step 4: Simplify right side
    76,893.17x = 4,781,659,296.19
  5. Step 5: Solve for x
    x = 4,781,659,296.19/76,893.17
  6. Step 6: Final answer
    x = 62,185.75

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1.5x scale

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.