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Finding the Fourth Proportional to 106,012.80, 159,019.20 and 101,462.40

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Solution

The fourth proportional to 106,012.80, 159,019.20 and 101,462.40 is: 152,193.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,012.80 : 159,019.20 = 101,462.40 : x
  2. Step 2: Convert to fraction form
    106,012.80/159,019.20 = 101,462.40/x
  3. Step 3: Cross multiply
    106,012.80x = 159,019.20 × 101,462.40
  4. Step 4: Simplify right side
    106,012.80x = 16,134,469,678.08
  5. Step 5: Solve for x
    x = 16,134,469,678.08/106,012.80
  6. Step 6: Final answer
    x = 152,193.60

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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.