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Finding the Fourth Proportional to 74,124.90, 110,924.71 and 65,376.90

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Solution

The fourth proportional to 74,124.90, 110,924.71 and 65,376.90 is: 97,833.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,124.90 : 110,924.71 = 65,376.90 : x
  2. Step 2: Convert to fraction form
    74,124.90/110,924.71 = 65,376.90/x
  3. Step 3: Cross multiply
    74,124.90x = 110,924.71 × 65,376.90
  4. Step 4: Simplify right side
    74,124.90x = 7,251,913,673.20
  5. Step 5: Solve for x
    x = 7,251,913,673.20/74,124.90
  6. Step 6: Final answer
    x = 97,833.71

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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.