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Finding the Fourth Proportional to 201,423.10, 301,770.15 and 96,009.70

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Solution

The fourth proportional to 201,423.10, 301,770.15 and 96,009.70 is: 143,840.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,423.10 : 301,770.15 = 96,009.70 : x
  2. Step 2: Convert to fraction form
    201,423.10/301,770.15 = 96,009.70/x
  3. Step 3: Cross multiply
    201,423.10x = 301,770.15 × 96,009.70
  4. Step 4: Simplify right side
    201,423.10x = 28,972,861,570.46
  5. Step 5: Solve for x
    x = 28,972,861,570.46/201,423.10
  6. Step 6: Final answer
    x = 143,840.81

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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.