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Finding the Fourth Proportional to 450,069.12, 675,106.92 and 134,528.76

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Solution

The fourth proportional to 450,069.12, 675,106.92 and 134,528.76 is: 201,794.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,069.12 : 675,106.92 = 134,528.76 : x
  2. Step 2: Convert to fraction form
    450,069.12/675,106.92 = 134,528.76/x
  3. Step 3: Cross multiply
    450,069.12x = 675,106.92 × 134,528.76
  4. Step 4: Simplify right side
    450,069.12x = 90,821,296,815.02
  5. Step 5: Solve for x
    x = 90,821,296,815.02/450,069.12
  6. Step 6: Final answer
    x = 201,794.11

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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.