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Finding the Fourth Proportional to 97,953.90, 135,171.90 and 55,511.52

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Solution

The fourth proportional to 97,953.90, 135,171.90 and 55,511.52 is: 76,603.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,953.90 : 135,171.90 = 55,511.52 : x
  2. Step 2: Convert to fraction form
    97,953.90/135,171.90 = 55,511.52/x
  3. Step 3: Cross multiply
    97,953.90x = 135,171.90 × 55,511.52
  4. Step 4: Simplify right side
    97,953.90x = 7,503,597,630.29
  5. Step 5: Solve for x
    x = 7,503,597,630.29/97,953.90
  6. Step 6: Final answer
    x = 76,603.36

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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.