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Finding the Fourth Proportional to 55,751.96, 76,897.96 and 51,167.50

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Solution

The fourth proportional to 55,751.96, 76,897.96 and 51,167.50 is: 70,574.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,751.96 : 76,897.96 = 51,167.50 : x
  2. Step 2: Convert to fraction form
    55,751.96/76,897.96 = 51,167.50/x
  3. Step 3: Cross multiply
    55,751.96x = 76,897.96 × 51,167.50
  4. Step 4: Simplify right side
    55,751.96x = 3,934,676,480.69
  5. Step 5: Solve for x
    x = 3,934,676,480.69/55,751.96
  6. Step 6: Final answer
    x = 70,574.67

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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.