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Finding the Fourth Proportional to 97,112.88, 134,018.28 and 54,672.93

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Solution

The fourth proportional to 97,112.88, 134,018.28 and 54,672.93 is: 75,450.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,112.88 : 134,018.28 = 54,672.93 : x
  2. Step 2: Convert to fraction form
    97,112.88/134,018.28 = 54,672.93/x
  3. Step 3: Cross multiply
    97,112.88x = 134,018.28 × 54,672.93
  4. Step 4: Simplify right side
    97,112.88x = 7,327,172,041.16
  5. Step 5: Solve for x
    x = 7,327,172,041.16/97,112.88
  6. Step 6: Final answer
    x = 75,450.05

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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.