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Finding the Fourth Proportional to 101,373.01, 139,892.28 and 56,049.84

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Solution

The fourth proportional to 101,373.01, 139,892.28 and 56,049.84 is: 77,347.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,373.01 : 139,892.28 = 56,049.84 : x
  2. Step 2: Convert to fraction form
    101,373.01/139,892.28 = 56,049.84/x
  3. Step 3: Cross multiply
    101,373.01x = 139,892.28 × 56,049.84
  4. Step 4: Simplify right side
    101,373.01x = 7,840,939,701.05
  5. Step 5: Solve for x
    x = 7,840,939,701.05/101,373.01
  6. Step 6: Final answer
    x = 77,347.41

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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.