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Finding the Fourth Proportional to 97,011, 133,855.02 and 56,716.86

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Solution

The fourth proportional to 97,011, 133,855.02 and 56,716.86 is: 78,257.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,011 : 133,855.02 = 56,716.86 : x
  2. Step 2: Convert to fraction form
    97,011/133,855.02 = 56,716.86/x
  3. Step 3: Cross multiply
    97,011x = 133,855.02 × 56,716.86
  4. Step 4: Simplify right side
    97,011x = 7,591,836,429.64
  5. Step 5: Solve for x
    x = 7,591,836,429.64/97,011
  6. Step 6: Final answer
    x = 78,257.48

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1.5x scale

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.