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Finding the Fourth Proportional to 74,676.64, 111,925.90 and 52,065.04

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Solution

The fourth proportional to 74,676.64, 111,925.90 and 52,065.04 is: 78,035.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,676.64 : 111,925.90 = 52,065.04 : x
  2. Step 2: Convert to fraction form
    74,676.64/111,925.90 = 52,065.04/x
  3. Step 3: Cross multiply
    74,676.64x = 111,925.90 × 52,065.04
  4. Step 4: Simplify right side
    74,676.64x = 5,827,426,460.54
  5. Step 5: Solve for x
    x = 5,827,426,460.54/74,676.64
  6. Step 6: Final answer
    x = 78,035.47

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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.