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Finding the Fourth Proportional to 146,428.40, 219,496.80 and 67,404.80

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Solution

The fourth proportional to 146,428.40, 219,496.80 and 67,404.80 is: 101,040.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,428.40 : 219,496.80 = 67,404.80 : x
  2. Step 2: Convert to fraction form
    146,428.40/219,496.80 = 67,404.80/x
  3. Step 3: Cross multiply
    146,428.40x = 219,496.80 × 67,404.80
  4. Step 4: Simplify right side
    146,428.40x = 14,795,137,904.64
  5. Step 5: Solve for x
    x = 14,795,137,904.64/146,428.40
  6. Step 6: Final answer
    x = 101,040.08

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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.