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Finding the Fourth Proportional to 411,052.80, 616,581.12 and 130,598.40

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Solution

The fourth proportional to 411,052.80, 616,581.12 and 130,598.40 is: 195,898.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,052.80 : 616,581.12 = 130,598.40 : x
  2. Step 2: Convert to fraction form
    411,052.80/616,581.12 = 130,598.40/x
  3. Step 3: Cross multiply
    411,052.80x = 616,581.12 × 130,598.40
  4. Step 4: Simplify right side
    411,052.80x = 80,524,507,742.21
  5. Step 5: Solve for x
    x = 80,524,507,742.21/411,052.80
  6. Step 6: Final answer
    x = 195,898.21

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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.