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Finding the Fourth Proportional to 103,102.80, 154,769.40 and 96,334.80

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Solution

The fourth proportional to 103,102.80, 154,769.40 and 96,334.80 is: 144,609.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,102.80 : 154,769.40 = 96,334.80 : x
  2. Step 2: Convert to fraction form
    103,102.80/154,769.40 = 96,334.80/x
  3. Step 3: Cross multiply
    103,102.80x = 154,769.40 × 96,334.80
  4. Step 4: Simplify right side
    103,102.80x = 14,909,679,195.12
  5. Step 5: Solve for x
    x = 14,909,679,195.12/103,102.80
  6. Step 6: Final answer
    x = 144,609.84

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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.