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Finding the Fourth Proportional to 136,461.40, 204,692.10 and 96,803.80

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Solution

The fourth proportional to 136,461.40, 204,692.10 and 96,803.80 is: 145,205.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,461.40 : 204,692.10 = 96,803.80 : x
  2. Step 2: Convert to fraction form
    136,461.40/204,692.10 = 96,803.80/x
  3. Step 3: Cross multiply
    136,461.40x = 204,692.10 × 96,803.80
  4. Step 4: Simplify right side
    136,461.40x = 19,814,973,109.98
  5. Step 5: Solve for x
    x = 19,814,973,109.98/136,461.40
  6. Step 6: Final answer
    x = 145,205.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.