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Finding the Fourth Proportional to 97,046.92, 145,416.48 and 74,914.48

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Solution

The fourth proportional to 97,046.92, 145,416.48 and 74,914.48 is: 112,252.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,046.92 : 145,416.48 = 74,914.48 : x
  2. Step 2: Convert to fraction form
    97,046.92/145,416.48 = 74,914.48/x
  3. Step 3: Cross multiply
    97,046.92x = 145,416.48 × 74,914.48
  4. Step 4: Simplify right side
    97,046.92x = 10,893,799,982.63
  5. Step 5: Solve for x
    x = 10,893,799,982.63/97,046.92
  6. Step 6: Final answer
    x = 112,252.92

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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.