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Finding the Fourth Proportional to 96,699.51, 145,049.06 and 54,560.46

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Solution

The fourth proportional to 96,699.51, 145,049.06 and 54,560.46 is: 81,840.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,699.51 : 145,049.06 = 54,560.46 : x
  2. Step 2: Convert to fraction form
    96,699.51/145,049.06 = 54,560.46/x
  3. Step 3: Cross multiply
    96,699.51x = 145,049.06 × 54,560.46
  4. Step 4: Simplify right side
    96,699.51x = 7,913,943,436.17
  5. Step 5: Solve for x
    x = 7,913,943,436.17/96,699.51
  6. Step 6: Final answer
    x = 81,840.57

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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.