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Finding the Fourth Proportional to 201,240.70, 301,515.45 and 106,330.30

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Solution

The fourth proportional to 201,240.70, 301,515.45 and 106,330.30 is: 159,312.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,240.70 : 301,515.45 = 106,330.30 : x
  2. Step 2: Convert to fraction form
    201,240.70/301,515.45 = 106,330.30/x
  3. Step 3: Cross multiply
    201,240.70x = 301,515.45 × 106,330.30
  4. Step 4: Simplify right side
    201,240.70x = 32,060,228,253.14
  5. Step 5: Solve for x
    x = 32,060,228,253.14/201,240.70
  6. Step 6: Final answer
    x = 159,312.84

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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.