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Finding the Fourth Proportional to 74,930.54, 112,322.76 and 29,938.48

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Solution

The fourth proportional to 74,930.54, 112,322.76 and 29,938.48 is: 44,878.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,930.54 : 112,322.76 = 29,938.48 : x
  2. Step 2: Convert to fraction form
    74,930.54/112,322.76 = 29,938.48/x
  3. Step 3: Cross multiply
    74,930.54x = 112,322.76 × 29,938.48
  4. Step 4: Simplify right side
    74,930.54x = 3,362,772,554.11
  5. Step 5: Solve for x
    x = 3,362,772,554.11/74,930.54
  6. Step 6: Final answer
    x = 44,878.53

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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.