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Finding the Fourth Proportional to 307,788.40, 461,725.80 and 97,404.40

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Solution

The fourth proportional to 307,788.40, 461,725.80 and 97,404.40 is: 146,120.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,788.40 : 461,725.80 = 97,404.40 : x
  2. Step 2: Convert to fraction form
    307,788.40/461,725.80 = 97,404.40/x
  3. Step 3: Cross multiply
    307,788.40x = 461,725.80 × 97,404.40
  4. Step 4: Simplify right side
    307,788.40x = 44,974,124,513.52
  5. Step 5: Solve for x
    x = 44,974,124,513.52/307,788.40
  6. Step 6: Final answer
    x = 146,120.27

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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.