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Finding the Fourth Proportional to 97,511.10, 136,909.20 and 97,511.10

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Solution

The fourth proportional to 97,511.10, 136,909.20 and 97,511.10 is: 136,909.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,511.10 : 136,909.20 = 97,511.10 : x
  2. Step 2: Convert to fraction form
    97,511.10/136,909.20 = 97,511.10/x
  3. Step 3: Cross multiply
    97,511.10x = 136,909.20 × 97,511.10
  4. Step 4: Simplify right side
    97,511.10x = 13,350,166,692.12
  5. Step 5: Solve for x
    x = 13,350,166,692.12/97,511.10
  6. Step 6: Final answer
    x = 136,909.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.