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Finding the Fourth Proportional to 101,494.84, 140,063.12 and 56,175.92

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Solution

The fourth proportional to 101,494.84, 140,063.12 and 56,175.92 is: 77,522.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,494.84 : 140,063.12 = 56,175.92 : x
  2. Step 2: Convert to fraction form
    101,494.84/140,063.12 = 56,175.92/x
  3. Step 3: Cross multiply
    101,494.84x = 140,063.12 × 56,175.92
  4. Step 4: Simplify right side
    101,494.84x = 7,868,174,624.07
  5. Step 5: Solve for x
    x = 7,868,174,624.07/101,494.84
  6. Step 6: Final answer
    x = 77,522.90

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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.