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Finding the Fourth Proportional to 101,091.61, 151,638.02 and 44,918.51

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Solution

The fourth proportional to 101,091.61, 151,638.02 and 44,918.51 is: 67,378.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,091.61 : 151,638.02 = 44,918.51 : x
  2. Step 2: Convert to fraction form
    101,091.61/151,638.02 = 44,918.51/x
  3. Step 3: Cross multiply
    101,091.61x = 151,638.02 × 44,918.51
  4. Step 4: Simplify right side
    101,091.61x = 6,811,353,693.16
  5. Step 5: Solve for x
    x = 6,811,353,693.16/101,091.61
  6. Step 6: Final answer
    x = 67,378.03

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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.