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Finding the Fourth Proportional to 97,404.60, 146,106.90 and 53,117.85

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Solution

The fourth proportional to 97,404.60, 146,106.90 and 53,117.85 is: 79,676.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,404.60 : 146,106.90 = 53,117.85 : x
  2. Step 2: Convert to fraction form
    97,404.60/146,106.90 = 53,117.85/x
  3. Step 3: Cross multiply
    97,404.60x = 146,106.90 × 53,117.85
  4. Step 4: Simplify right side
    97,404.60x = 7,760,884,398.17
  5. Step 5: Solve for x
    x = 7,760,884,398.17/97,404.60
  6. Step 6: Final answer
    x = 79,676.78

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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.