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Finding the Fourth Proportional to 101,800.03, 140,484.88 and 56,480.98

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Solution

The fourth proportional to 101,800.03, 140,484.88 and 56,480.98 is: 77,944.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,800.03 : 140,484.88 = 56,480.98 : x
  2. Step 2: Convert to fraction form
    101,800.03/140,484.88 = 56,480.98/x
  3. Step 3: Cross multiply
    101,800.03x = 140,484.88 × 56,480.98
  4. Step 4: Simplify right side
    101,800.03x = 7,934,723,697.58
  5. Step 5: Solve for x
    x = 7,934,723,697.58/101,800.03
  6. Step 6: Final answer
    x = 77,944.22

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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.