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Finding the Fourth Proportional to 101,615.81, 152,699.48 and 54,263.84

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Solution

The fourth proportional to 101,615.81, 152,699.48 and 54,263.84 is: 81,543.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,615.81 : 152,699.48 = 54,263.84 : x
  2. Step 2: Convert to fraction form
    101,615.81/152,699.48 = 54,263.84/x
  3. Step 3: Cross multiply
    101,615.81x = 152,699.48 × 54,263.84
  4. Step 4: Simplify right side
    101,615.81x = 8,286,059,115.99
  5. Step 5: Solve for x
    x = 8,286,059,115.99/101,615.81
  6. Step 6: Final answer
    x = 81,543.02

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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.